Program crash when trying to save unsaved changes after clicking on another update button

[jeromewagener]

The following stack occurs when:

• You modify a field of an album item without saving it
• Click on the update button of another album item. This shows a warning concerning the unsaved changes
• Lastly try to save the album item that you originally modified and still contains unsaved changes

17:07:07.761 [main] ERROR org.sammelbox.Sammelbox - Sammelbox crashed org.eclipse.swt.SWTException: Widget is disposed at org.eclipse.swt.SWT.error(Unknown Source) ~[swt-linux64-4.3.jar:?] at org.eclipse.swt.SWT.error(Unknown Source) ~[swt-linux64-4.3.jar:?] at org.eclipse.swt.SWT.error(Unknown Source) ~[swt-linux64-4.3.jar:?] at org.eclipse.swt.widgets.Widget.error(Unknown Source) ~[swt-linux64-4.3.jar:?] at org.eclipse.swt.widgets.Widget.checkWidget(Unknown Source) ~[swt-linux64-4.3.jar:?] at org.eclipse.swt.widgets.Composite.getChildren(Unknown Source) ~[swt-linux64-4.3.jar:?] at org.sammelbox.view.sidepanes.BasicAlbumItemSidepane$1.widgetSelected(BasicAlbumItemSidepane.java:216) ~[classes/:?] at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source) ~[swt-linux64-4.3.jar:?] at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source) ~[swt-linux64-4.3.jar:?] at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source) ~[swt-linux64-4.3.jar:?] at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source) ~[swt-linux64-4.3.jar:?] at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source) ~[swt-linux64-4.3.jar:?] at org.sammelbox.view.ApplicationUI.initialize(ApplicationUI.java:239) ~[classes/:?] at org.sammelbox.view.ApplicationUI.initialize(ApplicationUI.java:121) ~[classes/:?] at org.sammelbox.Sammelbox.main(Sammelbox.java:91) [classes/:?]