Error when trying to merge a branche back to its originating branche

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I have created a branche from a branche. When trying to merge the branche back to the originating branche I get the following error (sorry partly in Dutch): Mendix.Modeler.Utility.Progress.ProgressException ---> System.Collections.Generic.KeyNotFoundException: De gegeven sleutel is niet aanwezig in het woordenboek. at System.ThrowHelper.ThrowKeyNotFoundException() at System.Collections.Generic.Dictionary`2.get_Item(TKey key) at System.Collections.ObjectModel.KeyedCollection`2.get_Item(TKey key) at Mendix.Modeler.VersionControl.MergeForm.AdvancedMergeForm.<>c__DisplayClassf.<Init>b__d() in c:\cygwin\home\autobuild\build\Mendix-3.1.1\modeler\Modeler\VersionControl\MergeForm\AdvancedMergeForm.cs:line 57 at Mendix.Modeler.Utility.Progress.ProgressUtil.<>c__DisplayClass1.<Do>b__0(ProgressInfo info) in c:\cygwin\home\autobuild\build\Mendix-3.1.1\modeler\Mendix.Modeler.Utility.Gui\Progress\ProgressUtil.cs:line 13 at Mendix.Modeler.Utility.Progress.Step.Run(ProgressInfo info) in c:\cygwin\home\autobuild\build\Mendix-3.1.1\modeler\Mendix.Modeler.Utility.Gui\Progress\Step.cs:line 22 at Mendix.Modeler.Utility.Progress.Process.worker_DoWork(Object sender, DoWorkEventArgs e) in c:\cygwin\home\autobuild\build\Mendix-3.1.1\modeler\Mendix.Modeler.Utility.Gui\Progress\Process.cs:line 86 at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument) --- End of inner exception stack trace --- at Mendix.Modeler.Utility.Progress.Process.Run() in c:\cygwin\home\autobuild\build\Mendix-3.1.1\modeler\Mendix.Modeler.Utility.Gui\Progress\Process.cs:line 68 at Mendix.Modeler.Utility.Progress.ProgressUtil.Do(String message, Action action) in c:\cygwin\home\autobuild\build\Mendix-3.1.1\modeler\Mendix.Modeler.Utility.Gui\Progress\ProgressUtil.cs:line 10 at Mendix.Modeler.Utility.Dialogs.ProgressDo(String message, Action action) in c:\cygwin\home\autobuild\build\Mendix-3.1.1\modeler\Mendix.Modeler.Utility.Gui\Dialogs.cs:line 333 at Mendix.Modeler.VersionControl.MergeForm.AdvancedMergeForm.Init() in c:\cygwin\home\autobuild\build\Mendix-3.1.1\modeler\Modeler\VersionControl\MergeForm\AdvancedMergeForm.cs:line 44 at Mendix.Modeler.VersionControl.MergeForm.AdvancedMergeForm.set_Branch(RevLine value) in c:\cygwin\home\autobuild\build\Mendix-3.1.1\modeler\Modeler\VersionControl\MergeForm\AdvancedMergeForm.cs:line 24 at Mendix.Modeler.VersionControl.MergeForm.ReintegrateBranchForm.<AddLineSelector>b__4(RevLine v) in c:\cygwin\home\autobuild\build\Mendix-3.1.1\modeler\Modeler\VersionControl\MergeForm\ReintegrateBranchForm.cs:line 98 at Mendix.Modeler.Utility.Forms.TypedControlSpec`1.<>c__DisplayClass4.<Set>b__3(Object o) in c:\cygwin\home\autobuild\build\Mendix-3.1.1\modeler\Mendix.Modeler.Utility.Gui\Forms\TypedControlSpec.cs:line 26 at Mendix.Modeler.Utility.Forms.ControlSpec.SetValue(Object value) in c:\cygwin\home\autobuild\build\Mendix-3.1.1\modeler\Mendix.Modeler.Utility.Gui\Forms\ControlSpec.cs:line 59 at Mendix.Modeler.Utility.Forms.ComboBoxEditController.comboBox_ValueChanged(Object sender, EventArgs e) in c:\cygwin\home\autobuild\build\Mendix-3.1.1\modeler\Mendix.Modeler.Utility.Gui\Forms\EditControllers\ComboBoxEditController.cs:line 120 at System.Windows.Forms.ComboBox.OnSelectedIndexChanged(EventArgs e) at System.Windows.Forms.ComboBox.WmReflectCommand(Message& m) at System.Windows.Forms.ComboBox.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) Translates to: Given key is not available in the dictionary. Does anyone have a clue what might cause this?
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1 answers
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Its a bug in 3.1.1 I guess. I had it once, worked around by merging using TortoiseSVN.

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