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Open some DTD in editor. add some wrong declaration to DTD. "Check DTD" action shows error in editor but no error shown on the same action in explorer. You must save DTD the document before Check DTD on explorer node.
I am sorry, I cannnot reproduce it. Are you able to reproduce it regularly?
Yes, I can reproduce It.
I cannot reproduce it after restart IDE. But after restart I saw something wrong. IvalidObjectException thrown. Two instance of the same DTD were opened in editor window.
Created attachment 7847 [details] Exception stacktrace
I see RANDOM keyword -> closed.
I cannot reproduce it but it is real bug. You must pay more investigation. The bug occured again. There were opened two editors for one DTD.
I have seen it too - randomly in a IDE with screwed userdir.
Neither of the issues described here are visible in 4.0 release. - the Check DTD action works properly from DTD node - the second problem (two tabs of the same file) has already been fixed (issue 39692)
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