SE-0451 has an additional author by mistake

[Visckmart]

The SE-0451 proposal has three authors on the list:

Authors: Tony Allevato, SE-0275, Alfredo Delli Bovi

I believe this informations have been extracted from the proposal page, which contains the following:

Author: Tony Allevato; based on SE-0275 by Alfredo Delli Bovi

I believe the extraction algorithm is taking all links from that line, which works correctly most of the time, but not in this case. I'm not sure what the ideal solution is here, if changing the proposal or the algorithm. The approach I took on my app that makes use of the metadata was to skip over the names that look too much like a proposal ID.

[Visckmart]

@dempseyatgithub

[dempseyatgithub]

I've submitted swiftlang/swift-evolution#2622 to update the SE-0451 proposal.

The previous proposal (SE-0275) should be noted in the optional Previous Proposals field, not the Author field.

The author of SE-0275 is already credited as the author of that proposal and should generally not be listed in the SE-0451 author field.