$ git clone -n https://src.fedoraproject.org/rpms/echo-artist.git /var/lib/mock/f40-build-2207719-52098/root/chroot_tmpdir/scmroot/echo-artist
Cloning into '/var/lib/mock/f40-build-2207719-52098/root/chroot_tmpdir/scmroot/echo-artist'...
$ git fetch origin 5463f5518d67d3b4d71e2842b02ea6ca863f39ec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/echo-artist
 * [new ref]         5463f5518d67d3b4d71e2842b02ea6ca863f39ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5463f55 Orphaned for 6+ weeks