$ git clone -n https://src.fedoraproject.org/rpms/qqc2-breeze-style.git /var/lib/mock/f40-build-2601976-63232/root/chroot_tmpdir/scmroot/qqc2-breeze-style
Cloning into '/var/lib/mock/f40-build-2601976-63232/root/chroot_tmpdir/scmroot/qqc2-breeze-style'...
$ git fetch origin 0c9c1edd219457693937d43b68d85e4b38e7f090:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qqc2-breeze-style
 * [new ref]         0c9c1edd219457693937d43b68d85e4b38e7f090 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0c9c1ed 6.0.2