$ git clone -n https://src.fedoraproject.org/rpms/xcb-imdkit.git /var/lib/mock/f40-build-1512592-23909/root/chroot_tmpdir/scmroot/xcb-imdkit
Cloning into '/var/lib/mock/f40-build-1512592-23909/root/chroot_tmpdir/scmroot/xcb-imdkit'...
$ git fetch origin d3f5de329f03c911621b114d684727b5cf54ac4c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xcb-imdkit
 * [new ref]         d3f5de329f03c911621b114d684727b5cf54ac4c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d3f5de3 update to upstream release 1.0.9