Uwe Schindler 16d0b822b3
Prevent the common zero-width code points and detect invalid UTF-8 encoding in our sources and selected resource files (#12937)
* Simple patch to prevent the common zero-width code points in our source and some types of resource files

* Validate correct UTF-8 input and fix buggy CSS file (ISO-8859-x encoded)

* add a bit of context

* Add CHANGES.txt
2023-12-13 17:27:05 +01:00
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