$ git clone -n https://src.fedoraproject.org/rpms/golang-github-googleapis-gax.git /var/lib/mock/f39-build-1769694-41501/root/chroot_tmpdir/scmroot/golang-github-googleapis-gax
Cloning into '/var/lib/mock/f39-build-1769694-41501/root/chroot_tmpdir/scmroot/golang-github-googleapis-gax'...
$ git fetch origin 90feb5ab8d4cfa5b9253a1d9c9917807767cf7df:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-googleapis-gax
 * [new ref]         90feb5ab8d4cfa5b9253a1d9c9917807767cf7df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90feb5a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild