$ git clone -n https://src.fedoraproject.org/rpms/libalkimia.git /var/lib/mock/f38-build-side-42-init-devel-609403-26261/root/chroot_tmpdir/scmroot/libalkimia
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-609403-26261/root/chroot_tmpdir/scmroot/libalkimia'...
$ git fetch origin dbef2016af103edee6f89be73b6106a9bdb944e5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libalkimia
 * [new ref]         dbef2016af103edee6f89be73b6106a9bdb944e5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dbef201 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild