$ git clone -n https://src.fedoraproject.org/rpms/mustache.git /var/lib/mock/f40-build-2012232-45778/root/chroot_tmpdir/scmroot/mustache
Cloning into '/var/lib/mock/f40-build-2012232-45778/root/chroot_tmpdir/scmroot/mustache'...
$ git fetch origin 6b15eac58f4131d5ff81719e6a36fb63a6c56e74:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mustache
 * [new ref]         6b15eac58f4131d5ff81719e6a36fb63a6c56e74 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b15eac Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild