$ git clone -n https://src.fedoraproject.org/rpms/ghc-string-qq.git /var/lib/mock/f40-build-744368-111705/root/chroot_tmpdir/scmroot/ghc-string-qq
Cloning into '/var/lib/mock/f40-build-744368-111705/root/chroot_tmpdir/scmroot/ghc-string-qq'...
$ git fetch origin a0c1dc6019bc608f7b2a761682384b62ffc095cb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-string-qq
 * [new ref]         a0c1dc6019bc608f7b2a761682384b62ffc095cb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a0c1dc6 https://hackage.haskell.org/package/string-qq-0.0.5/changelog