$ git clone -n https://src.fedoraproject.org/rpms/realmd.git /var/lib/mock/f39-build-1644168-40274/root/chroot_tmpdir/scmroot/realmd
Cloning into '/var/lib/mock/f39-build-1644168-40274/root/chroot_tmpdir/scmroot/realmd'...
$ git fetch origin c23807faca5c0ca01ae392ec1a6b08d2f40490f6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/realmd
 * [new ref]         c23807faca5c0ca01ae392ec1a6b08d2f40490f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c23807f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild