$ git clone -n https://src.fedoraproject.org/rpms/libunifex.git /var/lib/mock/f40-build-785862-134131/root/chroot_tmpdir/scmroot/libunifex
Cloning into '/var/lib/mock/f40-build-785862-134131/root/chroot_tmpdir/scmroot/libunifex'...
$ git fetch origin 1fb8470c3fac31f6abd814485be892f44cd63105:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libunifex
 * [new ref]         1fb8470c3fac31f6abd814485be892f44cd63105 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1fb8470 Change -Wmaybe-uninitialized errors into warnings