$ git clone -n https://src.fedoraproject.org/rpms/ghc-ieee754.git /var/lib/mock/f38-build-side-42-init-devel-842283-28416/root/chroot_tmpdir/scmroot/ghc-ieee754
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-842283-28416/root/chroot_tmpdir/scmroot/ghc-ieee754'...
$ git fetch origin 923fb7a633e4fab73b75eaa1a44bf88e7ec53edb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-ieee754
 * [new ref]         923fb7a633e4fab73b75eaa1a44bf88e7ec53edb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 923fb7a Convert to %autorelease and %autochangelog