$ git clone -n https://src.fedoraproject.org/rpms/gtksourceviewmm.git /var/lib/mock/f29-build-7171-1764/root/thebuilddir/tmp/scmroot/gtksourceviewmm
Cloning into '/var/lib/mock/f29-build-7171-1764/root/thebuilddir/tmp/scmroot/gtksourceviewmm'...
$ git reset --hard 0940417cb5f474cf0922f08afbb97f3023a055dd
HEAD is now at 0940417 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild