Questions regarding broken CRT lead

[Skywaffle]

Hello,
I have been working on an RCA CTC-20C which started with a mostly dead CRT (among other issues). After some time on the rejuvenator, the CRT was able to produce a fairly good picture overall. This became short lived when I decided to work on the chassis some and afterwards would not get any neck glow. Upon de-soldering the bakelite base, I noticed that one of the leads had broken off mostly flush (somewhat recessed) to the glass.

Has anyone encountered this type of issue before? If so, has anyone found a way to repair this type of damage?

Thanks,
Matthew