$ git clone -n https://src.fedoraproject.org/rpms/goocanvasmm.git /var/lib/mock/f29-build-6892-1696/root/thebuilddir/tmp/scmroot/goocanvasmm
Cloning into '/var/lib/mock/f29-build-6892-1696/root/thebuilddir/tmp/scmroot/goocanvasmm'...
$ git reset --hard 0d96157738e888801bbc39f88d37ddf79b6d9f94
HEAD is now at 0d96157 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild