$ git clone -n https://src.fedoraproject.org/rpms/maven-parent.git /var/lib/mock/f38-build-side-42-init-devel-715032-27290/root/chroot_tmpdir/scmroot/maven-parent
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-715032-27290/root/chroot_tmpdir/scmroot/maven-parent'...
$ git fetch origin deca558bd8c18df790f942fe6a0686f126a66dfa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/maven-parent
 * [new ref]         deca558bd8c18df790f942fe6a0686f126a66dfa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at deca558 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild