$ git clone -n https://src.fedoraproject.org/rpms/ghc-path-pieces.git /var/lib/mock/f38-build-side-42-init-devel-596324-26162/root/chroot_tmpdir/scmroot/ghc-path-pieces
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-596324-26162/root/chroot_tmpdir/scmroot/ghc-path-pieces'...
$ git fetch origin 0295ccd271f62c114a921ea2287426b8ed079f34:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-path-pieces
 * [new ref]         0295ccd271f62c114a921ea2287426b8ed079f34 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0295ccd Convert to %autorelease and %autochangelog