Immutable props fix (fixes #2433) #2779
Merged
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This fixes a longstanding bug where the warning for immutable prop changes doesn't get shown. It also adds tests to ensure the warning is emitted at the correct times.
Side note: this will probably confuse people once it gets merged because a lot of projects are likely changing props without the
{ mutable: true }
flag. I've already noticed a few in Stencil Router. 😆