This werk introduces a fix to the pattern attribute in various
To avoid partial matches, regex patterns should start with
the caret and end with the dollar symbol.
Also, the + symbol should be preferred over the * symbol as
the * symbol allowed for zero or more matches instead of
1 or more which is what the + symbol gives us.
For patterns that list possible options, e.g.
they have instead been removed and replaced with enums.
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