$ git clone -n https://src.fedoraproject.org/rpms/ghc-Diff.git /var/lib/mock/f31-build-115482-34502/root/chroot_tmpdir/scmroot/ghc-Diff
Cloning into '/var/lib/mock/f31-build-115482-34502/root/chroot_tmpdir/scmroot/ghc-Diff'...
$ git reset --hard a22ddfee44e69726f582468fc0947a0c3f9539e8
HEAD is now at a22ddfe BR prof for lib and static for executable