source compare with fonts

[David Vinayak Wallace <Gumby at MIT-MC>]

In Symbolics 3600 Zwei in System 242.356, Hardcopy 20.10, FEP 22, on Lisp Machine Sid Vicious:

If I M-X Source Compare a file with fonts to a buffer with fonts, zwei
does the wrong thing (e.g. it ignores font info for the buffer and
treats the ^F's in the source file as text).

For instance, take a file with fonts in it, load it into a buffer, and
then compare the buffer with the disk version.