$ git clone -n https://src.fedoraproject.org/rpms/kf5-kcmutils.git /var/lib/mock/f40-build-787797-134895/root/chroot_tmpdir/scmroot/kf5-kcmutils
Cloning into '/var/lib/mock/f40-build-787797-134895/root/chroot_tmpdir/scmroot/kf5-kcmutils'...
$ git fetch origin 3c0d7303d2bc5935bf91d96c75dabba9e6fa3a3c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kcmutils
 * [new ref]         3c0d7303d2bc5935bf91d96c75dabba9e6fa3a3c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c0d730 5.115.0