$ git clone -n https://src.fedoraproject.org/rpms/golang-modernc-z.git /var/lib/mock/f41-build-851321-165908/root/chroot_tmpdir/scmroot/golang-modernc-z
Cloning into '/var/lib/mock/f41-build-851321-165908/root/chroot_tmpdir/scmroot/golang-modernc-z'...
$ git fetch origin 9167a3ac47a165dac1db276941abf12f9d6298d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-modernc-z
 * [new ref]         9167a3ac47a165dac1db276941abf12f9d6298d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9167a3a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild