$ git clone -n https://src.fedoraproject.org/rpms/ghc-hxt-charproperties.git /var/lib/mock/f38-build-side-42-init-devel-577220-26014/root/chroot_tmpdir/scmroot/ghc-hxt-charproperties
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-577220-26014/root/chroot_tmpdir/scmroot/ghc-hxt-charproperties'...
$ git fetch origin 05bba984a374b62a3c9f1f89b05943fce0c540e8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-hxt-charproperties
 * [new ref]         05bba984a374b62a3c9f1f89b05943fce0c540e8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 05bba98 Convert to %autorelease and %autochangelog