$ git clone -n https://src.fedoraproject.org/rpms/gnome-contacts.git /var/lib/mock/f41-build-842737-161701/root/chroot_tmpdir/scmroot/gnome-contacts
Cloning into '/var/lib/mock/f41-build-842737-161701/root/chroot_tmpdir/scmroot/gnome-contacts'...
$ git fetch origin 6bfa8cad99b37e790b0750a315655afaec49c0f1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-contacts
 * [new ref]         6bfa8cad99b37e790b0750a315655afaec49c0f1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6bfa8ca Drop AdwSpinner reversion now libadwaita is new enough in Rawhide