$ git clone -n https://src.fedoraproject.org/rpms/R-RMariaDB.git /var/lib/mock/f40-build-746063-112349/root/chroot_tmpdir/scmroot/R-RMariaDB
Cloning into '/var/lib/mock/f40-build-746063-112349/root/chroot_tmpdir/scmroot/R-RMariaDB'...
$ git fetch origin b460e9651fc315fdc7520eec956ade55da301e97:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-RMariaDB
 * [new ref]         b460e9651fc315fdc7520eec956ade55da301e97 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b460e96 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild