$ git clone -n https://src.fedoraproject.org/rpms/libxcb.git /var/lib/mock/f32-build-121685-37804/root/chroot_tmpdir/scmroot/libxcb
Cloning into '/var/lib/mock/f32-build-121685-37804/root/chroot_tmpdir/scmroot/libxcb'...
$ git reset --hard b0d8b1b64b7395dc54907b81822ebed1c940d141
HEAD is now at b0d8b1b - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild