Bug 338816 Resetting a perspective with multiple minimized stacks causes 'widget is disposed' errors
Found when testing the new min/max work... This is a bad one; open a fresh session, maximize the editor area and then reset the perspective...whamo ! The workbench is left in an unusable state...
bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/TrimBarRenderer.java
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