$ git clone -n https://src.fedoraproject.org/rpms/ghc-uuid.git /var/lib/mock/f38-build-side-42-init-devel-750620-27661/root/chroot_tmpdir/scmroot/ghc-uuid
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-750620-27661/root/chroot_tmpdir/scmroot/ghc-uuid'...
$ git fetch origin e01924c540e79ea7baef897e7fed2ef112d96141:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-uuid
 * [new ref]         e01924c540e79ea7baef897e7fed2ef112d96141 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e01924c Convert to %autorelease and %autochangelog