$ git clone -n https://src.fedoraproject.org/rpms/rubygem-opengl.git /var/lib/mock/f40-build-806696-145143/root/chroot_tmpdir/scmroot/rubygem-opengl
Cloning into '/var/lib/mock/f40-build-806696-145143/root/chroot_tmpdir/scmroot/rubygem-opengl'...
$ git reset --hard f146682609d3534d047ae246bbaffdb2fcafdb82
HEAD is now at f146682 Fix -Werror=incompatible-pointer-types hard