$ git clone -n https://src.fedoraproject.org/rpms/kf6-qqc2-desktop-style.git /var/lib/mock/f42-build-862038-170551/root/chroot_tmpdir/scmroot/kf6-qqc2-desktop-style
Cloning into '/var/lib/mock/f42-build-862038-170551/root/chroot_tmpdir/scmroot/kf6-qqc2-desktop-style'...
$ git fetch origin 0b27f04e64ef978c57527da5dcbc66b972ecb672:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-qqc2-desktop-style
 * [new ref]         0b27f04e64ef978c57527da5dcbc66b972ecb672 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0b27f04 6.8.0