$ git clone -n https://src.fedoraproject.org/rpms/libXmu.git /var/lib/mock/f31-build-67796-30095/root/chroot_tmpdir/scmroot/libXmu
Cloning into '/var/lib/mock/f31-build-67796-30095/root/chroot_tmpdir/scmroot/libXmu'...
$ git reset --hard 1a66df3235565d04d266589e43f1f16af67f2796
HEAD is now at 1a66df3 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild