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Bugzilla Version 2.22.1-debian2
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There has to be a decision how to prevent/handle transformation errors, then the solution has to be implemented for all input fields, such as in user-management etc...
I am not sure what you mean by "transformation errors": XSLT errors? But then you speak of "input fields", so I assume you mean "validation errors", like in: E-mail address invalid, passowrd too short, ..., right? Anyway, this looks like an enhancement, not a bug => adjusting severity.