$ git clone -n https://src.fedoraproject.org/rpms/amanda.git /var/lib/mock/f40-build-1990585-43411/root/chroot_tmpdir/scmroot/amanda
Cloning into '/var/lib/mock/f40-build-1990585-43411/root/chroot_tmpdir/scmroot/amanda'...
$ git fetch origin d9c69a38839b0e095101c9dcc96a0e90bf52945c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/amanda
 * [new ref]         d9c69a38839b0e095101c9dcc96a0e90bf52945c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d9c69a3 Fix another C compatibility issue (upstream PR #242)