Fix TextBlock re-measure in infinite container #17638
Merged
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What does the pull request do?
This PR fixes a
TextBlock
not re-measuring itself it it's contained in an infinite container and itsTextLayout
is created.See #17637 for details.
A unit test has been added.
How was the solution implemented (if it's not obvious)?
An invalid constraint (
NaN
) is set at the start, so it will never match anything else by default.Fixed issues