[release/dev18.0] Don't cache known-broken compositions #80023
Merged
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Right now we have an issue where users are getting broken MEF compositions cached on their machines, so subsequent launches of the product are operating on a broken composition. It's not "broken" in the sense that "the cache cannot be loaded" but rather the content of the cache is just missing most of our MEF parts. As a defense-in-depth change to deal with potential transient issues, let's not cache compositions we know are bad.