$ git clone -n https://src.fedoraproject.org/rpms/qqc2-breeze-style.git /var/lib/mock/f45-build-33989-676/root/chroot_tmpdir/scmroot/qqc2-breeze-style
Cloning into '/var/lib/mock/f45-build-33989-676/root/chroot_tmpdir/scmroot/qqc2-breeze-style'...
$ git fetch origin cc259dde4d6efa355fcd9430b3b412708a4dafb8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qqc2-breeze-style
 * [new ref]         cc259dde4d6efa355fcd9430b3b412708a4dafb8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cc259dd 6.7.5