$ git clone -n https://src.fedoraproject.org/rpms/libgdata.git /var/lib/mock/f39-build-1551104-36962/root/chroot_tmpdir/scmroot/libgdata
Cloning into '/var/lib/mock/f39-build-1551104-36962/root/chroot_tmpdir/scmroot/libgdata'...
$ git fetch origin d1f39170dd18392a0c7419ddb1572ca15579006a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libgdata
 * [new ref]         d1f39170dd18392a0c7419ddb1572ca15579006a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d1f3917 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild