DO NOT MERGE: Run on this PR.

Author: alexmv

.github/workflows/update-translations.yml

@@ -3,6 +3,7 @@ permissions:
   contents: write
   pull-requests: write
 on:
+  pull_request:
   schedule:
     - cron: "0 10 * * 1"
   workflow_dispatch:
@@ -12,13 +13,17 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          ref: ${{ github.event.pull_request.head.sha }}
 
       - name: Fetch and merge from Weblate
         # The commit message is generated in Weblate; see https://hosted.weblate.org/addon/17163/
         run: |
+          git log --oneline --graph --all -n5
           git remote add weblate https://hosted.weblate.org/git/zulip/zulip-flutter/
           git fetch weblate
-          git merge --ff-only weblate/main
+          git merge weblate/main
 
       - name: Clone Flutter SDK
         # TODO(#1204) reinstate shallow clone with --depth=1000 and its corresponding comment here