I'd like to add my voice to this thread — this bug is EXTREMELY annoying and dangerous, please do give it the attention it deserves.
To be clear on the severity, let me rephrase it in terms that will hopefully get the message across:
PD10 CORRUPTS USER DATA in parts of the OS X filesystem that are not even related to Parallels.
People using git are able to detect this and revert the breakage; that's annoying enough. But if you're not lucky enough to use version control for all your .lnk files, Parallels can cause really, really, really bad problems: it OVERWRITES AND PERMANENTLY DESTROYS USER FILES. If that doesn't deserve emergency update with a fix, I don't know what else does.
Edit: submitted PR ID #51168013 — supposedly "devs are working on it", but well, that's what Parallels said a month ago… Sigh.