$ git clone -n https://src.fedoraproject.org/rpms/xorg-x11-apps.git /var/lib/mock/f31-build-71475-30644/root/thebuilddir/tmp/scmroot/xorg-x11-apps
Cloning into '/var/lib/mock/f31-build-71475-30644/root/thebuilddir/tmp/scmroot/xorg-x11-apps'...
$ git reset --hard 21a49db368966017bca928866e5e7ba8ff8ebd37
HEAD is now at 21a49db - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild