Restore master branch before running CI.

.gitlab-ci.yml

@@ -53,8 +53,10 @@ sync_with_openfisca_france:
     - git config --global user.email "admin+openfisca-france-reforms-ci@tax-benefit.org"
     - git config --global user.name "OpenFisca-France Reforms CI"
 
+    # Reset current repo, because it may have been tranformed by a previous CI that failed.
     - git switch master
-    - git diff origin/master
+    - git reset --hard origin/master
+    - git status
     - git remote set-url origin git@git.leximpact.dev:openfisca/openfisca-france-reforms.git
 
     - npm install

src/scripts/sync_with_openfisca_france.ts

@@ -64,6 +64,7 @@ async function main() {
     await $`git commit -m "Set openfisca-france version to ${openFiscaFranceVersion}."`
     await $`git tag -a "${newVersion}" -m "${newVersion} (openfisca-france@${openFiscaFranceVersion})"`
     await $`git push --set-upstream --tags origin ${branch}`
+    await $`git switch master`
   }
 }