$ git clone -n https://src.fedoraproject.org/rpms/ghc-dotgen.git /var/lib/mock/f33-build-287067-53791/root/chroot_tmpdir/scmroot/ghc-dotgen
Cloning into '/var/lib/mock/f33-build-287067-53791/root/chroot_tmpdir/scmroot/ghc-dotgen'...
$ git reset --hard a90751f583625f79b461b56c05aaf37e92acdc30
HEAD is now at a90751f - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild