$ git clone -n https://src.fedoraproject.org/rpms/ghc-wai-extra.git /var/lib/mock/f31-build-101535-33409/root/chroot_tmpdir/scmroot/ghc-wai-extra
Cloning into '/var/lib/mock/f31-build-101535-33409/root/chroot_tmpdir/scmroot/ghc-wai-extra'...
$ git reset --hard eb00151bc1a646394d37c624dd6b65c1bf520278
HEAD is now at eb00151 BR prof for lib and static for executable