$ git clone -n https://src.fedoraproject.org/rpms/hgsvn.git /var/lib/mock/f39-build-1744218-41381/root/chroot_tmpdir/scmroot/hgsvn
Cloning into '/var/lib/mock/f39-build-1744218-41381/root/chroot_tmpdir/scmroot/hgsvn'...
$ git fetch origin eaf004f17f0d9f205c33742dd2f7835c7713bf2e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hgsvn
 * [new ref]         eaf004f17f0d9f205c33742dd2f7835c7713bf2e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eaf004f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild