$ git clone -n https://src.fedoraproject.org/rpms/ghc-simple-sendfile.git /var/lib/mock/f38-build-side-42-init-devel-890919-28536/root/chroot_tmpdir/scmroot/ghc-simple-sendfile
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-890919-28536/root/chroot_tmpdir/scmroot/ghc-simple-sendfile'...
$ git fetch origin cd46440bed83fe65a32a029859a1a097002ff2df:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-simple-sendfile
 * [new ref]         cd46440bed83fe65a32a029859a1a097002ff2df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cd46440 Convert to %autorelease and %autochangelog