$ git clone -n https://src.fedoraproject.org/rpms/qqc2-breeze-style.git /var/lib/mock/f40-build-767444-124702/root/chroot_tmpdir/scmroot/qqc2-breeze-style
Cloning into '/var/lib/mock/f40-build-767444-124702/root/chroot_tmpdir/scmroot/qqc2-breeze-style'...
$ git fetch origin de321d78de05460c9a8d825a5bea75e60c469735:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qqc2-breeze-style
 * [new ref]         de321d78de05460c9a8d825a5bea75e60c469735 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de321d7 5.91.0