$ git clone -n https://src.fedoraproject.org/rpms/ghc-simple-sendfile.git /var/lib/mock/f31-build-112317-34275/root/chroot_tmpdir/scmroot/ghc-simple-sendfile
Cloning into '/var/lib/mock/f31-build-112317-34275/root/chroot_tmpdir/scmroot/ghc-simple-sendfile'...
$ git reset --hard e72f9ca577317eec5c78d7921b007ba6ac5b0596
HEAD is now at e72f9ca BR prof for lib and static for executable