$ git clone -n https://src.fedoraproject.org/rpms/ghc-parsec-numbers.git /var/lib/mock/f38-build-side-42-init-devel-727563-27336/root/chroot_tmpdir/scmroot/ghc-parsec-numbers
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-727563-27336/root/chroot_tmpdir/scmroot/ghc-parsec-numbers'...
$ git fetch origin f7d3b0e8bd807d9e2add0e0b7d7a80e4722ce54e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-parsec-numbers
 * [new ref]         f7d3b0e8bd807d9e2add0e0b7d7a80e4722ce54e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f7d3b0e Convert to %autorelease and %autochangelog