diff --git a/.github/workflows/__analyze-ref-input.yml b/.github/workflows/__analyze-ref-input.yml
index 79d863a13..66988ce3a 100644
--- a/.github/workflows/__analyze-ref-input.yml
+++ b/.github/workflows/__analyze-ref-input.yml
@@ -91,7 +91,7 @@ jobs:
           go-version: ${{ inputs.go-version || '>=1.21.0' }}
           cache: false
       - name: Install Python
-        if: matrix.version != 'nightly-latest'
+        if: matrix.version != 'nightly-latest' || !matrix.version
         uses: actions/setup-python@v6
         with:
           python-version: ${{ inputs.python-version || '3.13' }}
diff --git a/.github/workflows/__local-bundle.yml b/.github/workflows/__local-bundle.yml
index 24704c3a6..47975dbd5 100644
--- a/.github/workflows/__local-bundle.yml
+++ b/.github/workflows/__local-bundle.yml
@@ -91,7 +91,7 @@ jobs:
           go-version: ${{ inputs.go-version || '>=1.21.0' }}
           cache: false
       - name: Install Python
-        if: matrix.version != 'nightly-latest'
+        if: matrix.version != 'nightly-latest' || !matrix.version
         uses: actions/setup-python@v6
         with:
           python-version: ${{ inputs.python-version || '3.13' }}
diff --git a/.github/workflows/__multi-language-autodetect.yml b/.github/workflows/__multi-language-autodetect.yml
index 6899561ef..afd322785 100644
--- a/.github/workflows/__multi-language-autodetect.yml
+++ b/.github/workflows/__multi-language-autodetect.yml
@@ -125,7 +125,7 @@ jobs:
           go-version: ${{ inputs.go-version || '>=1.21.0' }}
           cache: false
       - name: Install Python
-        if: matrix.version != 'nightly-latest'
+        if: matrix.version != 'nightly-latest' || !matrix.version
         uses: actions/setup-python@v6
         with:
           python-version: ${{ inputs.python-version || '3.13' }}
diff --git a/.github/workflows/__packaging-codescanning-config-inputs-js.yml b/.github/workflows/__packaging-codescanning-config-inputs-js.yml
index 2f7ca6769..cd97dd80c 100644
--- a/.github/workflows/__packaging-codescanning-config-inputs-js.yml
+++ b/.github/workflows/__packaging-codescanning-config-inputs-js.yml
@@ -102,7 +102,7 @@ jobs:
       - name: Install dependencies
         run: npm ci
       - name: Install Python
-        if: matrix.version != 'nightly-latest'
+        if: matrix.version != 'nightly-latest' || !matrix.version
         uses: actions/setup-python@v6
         with:
           python-version: ${{ inputs.python-version || '3.13' }}
diff --git a/.github/workflows/__remote-config.yml b/.github/workflows/__remote-config.yml
index 9bee2292a..82cbee135 100644
--- a/.github/workflows/__remote-config.yml
+++ b/.github/workflows/__remote-config.yml
@@ -93,7 +93,7 @@ jobs:
           go-version: ${{ inputs.go-version || '>=1.21.0' }}
           cache: false
       - name: Install Python
-        if: matrix.version != 'nightly-latest'
+        if: matrix.version != 'nightly-latest' || !matrix.version
         uses: actions/setup-python@v6
         with:
           python-version: ${{ inputs.python-version || '3.13' }}
diff --git a/.github/workflows/__unset-environment.yml b/.github/workflows/__unset-environment.yml
index aa958c8b9..e5189ca01 100644
--- a/.github/workflows/__unset-environment.yml
+++ b/.github/workflows/__unset-environment.yml
@@ -93,7 +93,7 @@ jobs:
           go-version: ${{ inputs.go-version || '>=1.21.0' }}
           cache: false
       - name: Install Python
-        if: matrix.version != 'nightly-latest'
+        if: matrix.version != 'nightly-latest' || !matrix.version
         uses: actions/setup-python@v6
         with:
           python-version: ${{ inputs.python-version || '3.13' }}
diff --git a/.github/workflows/__upload-ref-sha-input.yml b/.github/workflows/__upload-ref-sha-input.yml
index 5ac97a515..f75b9f61f 100644
--- a/.github/workflows/__upload-ref-sha-input.yml
+++ b/.github/workflows/__upload-ref-sha-input.yml
@@ -91,7 +91,7 @@ jobs:
           go-version: ${{ inputs.go-version || '>=1.21.0' }}
           cache: false
       - name: Install Python
-        if: matrix.version != 'nightly-latest'
+        if: matrix.version != 'nightly-latest' || !matrix.version
         uses: actions/setup-python@v6
         with:
           python-version: ${{ inputs.python-version || '3.13' }}
diff --git a/.github/workflows/__upload-sarif.yml b/.github/workflows/__upload-sarif.yml
index f6b7aa3cc..e017a2527 100644
--- a/.github/workflows/__upload-sarif.yml
+++ b/.github/workflows/__upload-sarif.yml
@@ -98,7 +98,7 @@ jobs:
           go-version: ${{ inputs.go-version || '>=1.21.0' }}
           cache: false
       - name: Install Python
-        if: matrix.version != 'nightly-latest'
+        if: matrix.version != 'nightly-latest' || !matrix.version
         uses: actions/setup-python@v6
         with:
           python-version: ${{ inputs.python-version || '3.13' }}
diff --git a/.github/workflows/__with-checkout-path.yml b/.github/workflows/__with-checkout-path.yml
index 06aae6c4a..cfcfb077f 100644
--- a/.github/workflows/__with-checkout-path.yml
+++ b/.github/workflows/__with-checkout-path.yml
@@ -92,7 +92,7 @@ jobs:
           go-version: ${{ inputs.go-version || '>=1.21.0' }}
           cache: false
       - name: Install Python
-        if: matrix.version != 'nightly-latest'
+        if: matrix.version != 'nightly-latest' || !matrix.version
         uses: actions/setup-python@v6
         with:
           python-version: ${{ inputs.python-version || '3.13' }}
diff --git a/pr-checks/sync.ts b/pr-checks/sync.ts
index dc3dc9768..f5d23d72d 100755
--- a/pr-checks/sync.ts
+++ b/pr-checks/sync.ts
@@ -198,7 +198,7 @@ const languageSetups: LanguageSetups = {
     steps: [
       {
         name: "Install Python",
-        if: "matrix.version != 'nightly-latest'",
+        if: "matrix.version != 'nightly-latest' || !matrix.version",
         uses: "actions/setup-python@v6",
         with: {
           "python-version":