fix: gate dist-git behind applyOverlays

Author: Antonio Salinas

internal/app/azldev/core/sources/sourceprep.go

@@ -152,13 +152,13 @@ func (p *sourcePreparerImpl) PrepareSources(
 		if err != nil {
 			return err
 		}
-	}
 
-	// Record the changes as synthetic git history when dist-git creation is enabled.
-	if p.withGitRepo {
-		if err := p.trySyntheticHistory(component, outputDir); err != nil {
-			return fmt.Errorf("failed to generate synthetic history for component %#q:\n%w",
-				component.GetName(), err)
+		// Record the changes as synthetic git history when dist-git creation is enabled.
+		if p.withGitRepo {
+			if err := p.trySyntheticHistory(component, outputDir); err != nil {
+				return fmt.Errorf("failed to generate synthetic history for component %#q:\n%w",
+					component.GetName(), err)
+			}
 		}
 	}
 
@@ -310,19 +310,13 @@ func (p *sourcePreparerImpl) trySyntheticHistory(
 		return nil
 	}
 
-	// Bump the static Release tag before staging changes. For specs using
-	// %autorelease this is a no-op; rpmautospec resolves releases from git
-	// history automatically. For static releases the leading integer is
-	// incremented by the number of synthetic commits so that every project
-	// commit that affects the component produces a unique release number.
+	// Adjust the Release tag before staging changes. See [tryBumpStaticRelease]
+	// for the handling of %autorelease, static integers, and non-standard values.
 	if err := p.tryBumpStaticRelease(component, sourcesDirPath, len(commits)); err != nil {
 		return fmt.Errorf("failed to apply release bump:\n%w", err)
 	}
 
-	// Check for an existing git repository in the sources directory.
-	// Use os.Stat rather than p.fs because go-git's PlainInit/PlainOpen always
-	// operate on the real OS filesystem — the check must use the same source of
-	// truth to avoid disagreement when p.fs is an in-memory FS (e.g. unit tests).
+	// Use os.Stat (not p.fs) because go-git always operates on the real filesystem.
 	gitDirPath := filepath.Join(sourcesDirPath, ".git")
 
 	_, statErr := os.Stat(gitDirPath)