Release signature key missing
I was not able to find the public key for the signature in glu-9.0.2.tar.xz.sig. The needed RSA key has the fingerprint BEEF494B5B291EB300A27F13ED2ED19F85B3682C. It is neither in https://docs.mesa3d.org/release-maintainers-keys.asc nor on any of the keyservers I tried.