$ git clone -n https://src.fedoraproject.org/rpms/ghc-extensible-exceptions.git /var/lib/mock/f40-build-742103-110518/root/chroot_tmpdir/scmroot/ghc-extensible-exceptions
Cloning into '/var/lib/mock/f40-build-742103-110518/root/chroot_tmpdir/scmroot/ghc-extensible-exceptions'...
$ git reset --hard e2bce4c274d478f76ea6bebc2e5289419d66b34b
HEAD is now at e2bce4c bump release