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Created attachment 144242 [details] Example of bug in editor window Product Version: NetBeans IDE 8.0 Beta (Build 201401141042) Java: 1.7.0_45; Java HotSpot(TM) 64-Bit Server VM 24.45-b08 Runtime: Java(TM) SE Runtime Environment 1.7.0_45-b18 System: Windows 8 version 6.2 running on amd64; Cp1250; en_US (nb) 1) Create project and open one file 2) Split your file using that split cross on the right top corner (vertically or horizontally) 3) Create document group (Window -> Document groups -> New Document Group) 4) Try to switch to <none> option in Ducument groups menu 5) Your previously opened documents should disappear 6) Open your previously created document group (Window -> Document groups -> "your group") 7) Now try to double click on separator line in editor window 8) The same file is opened in new tab and previous one has bug inside because separator doesn't disappear properly
I have noticed that this duplicating is there even when you have multiple files with split screen. Then when you double click on that separator in one of them, you will get new copy of all files with split screen. And also all of your opened files with split screen have the same bug.
The actual bug is that document split is removed after double-clicking its divider. That's fixed in core-main f6e5490a3489
Integrated into 'main-silver', will be available in build *201401280001* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main-silver/rev/f6e5490a3489 User: S. Aubrecht <saubrecht@netbeans.org> Log: #240816 - don't remove splitpane after double-clicking its split divider