$ git clone -n https://src.fedoraproject.org/rpms/ghc-foldl.git /var/lib/mock/f38-build-side-42-init-devel-641696-26393/root/chroot_tmpdir/scmroot/ghc-foldl
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-641696-26393/root/chroot_tmpdir/scmroot/ghc-foldl'...
$ git fetch origin 2000304033a51154c3cfd54e2964f71dedd72412:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-foldl
 * [new ref]         2000304033a51154c3cfd54e2964f71dedd72412 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2000304 Convert to %autorelease and %autochangelog