$ git clone -n https://src.fedoraproject.org/rpms/ghc-entropy.git /var/lib/mock/f38-build-side-42-init-devel-737967-27649/root/chroot_tmpdir/scmroot/ghc-entropy
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-737967-27649/root/chroot_tmpdir/scmroot/ghc-entropy'...
$ git fetch origin 0d68c1718fd39f4ace752d24f2cf41f23eb3ba94:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-entropy
 * [new ref]         0d68c1718fd39f4ace752d24f2cf41f23eb3ba94 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d68c17 Convert to %autorelease and %autochangelog