I have added a custom validation function to a field (Choice) on a task form.
The js function is within a referenced file.
The signature is
validateRuleClass = function(source, arguments) { ... }
The code in that function is working fine, but I noticed that the function is called twice.
How to avoid the second call?
What can cause such issue?
This is about SharePoint 2013 On-Premises
Best answer by MegaJerk
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