$ git clone -n https://src.fedoraproject.org/rpms/ghc-streaming-commons.git /var/lib/mock/f38-build-side-42-init-devel-1013447-29460/root/chroot_tmpdir/scmroot/ghc-streaming-commons
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1013447-29460/root/chroot_tmpdir/scmroot/ghc-streaming-commons'...
$ git fetch origin 0d7ff5d8a141760bea3a00743b1bd19987029002:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-streaming-commons
 * [new ref]         0d7ff5d8a141760bea3a00743b1bd19987029002 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d7ff5d Convert to %autorelease and %autochangelog