fetch unshallow only in post-clone

ci_scripts/ci_common.sh

@@ -27,14 +27,6 @@ setup_xcode_cloud_environment () {
 
     bundle config path vendor/bundle
     bundle install --jobs 4 --retry 3
-    # Xcode Cloud shallow clones the repo. We need to deepen it to fetch tags, commit history and be able to rebase main on develop at the end of releases.
-    # Check if the repository is shallow
-    if git rev-parse --is-shallow-repository; then
-        echo "Repository is shallow. Fetching full history..."
-        git fetch --unshallow --quiet
-    else
-        echo "Repository is already fully cloned."
-    fi
 }
 
 install_xcode_cloud_brew_dependencies () {
@@ -88,4 +80,9 @@ generate_what_to_test_notes() {
 
         echo "$NOTES" > $TESTFLIGHT_DIR_PATH/$TESTFLIGHT_NOTES_FILE_NAME
     fi
+}
+
+fetch_unshallow_repository() {
+    # Xcode Cloud shallow clones the repo. We need to deepen it to fetch tags, commit history and be able to rebase main on develop at the end of releases.
+    git fetch --unshallow --quiet
 }