$ git clone -n https://src.fedoraproject.org/rpms/ghc-base64-bytestring.git /var/lib/mock/f31-build-99437-33159/root/chroot_tmpdir/scmroot/ghc-base64-bytestring
Cloning into '/var/lib/mock/f31-build-99437-33159/root/chroot_tmpdir/scmroot/ghc-base64-bytestring'...
$ git reset --hard 41520f51a4db743f31427eda50fefa18309019db
HEAD is now at 41520f5 BR prof for lib and static for executable