Fix potential pop of empty enter stack.
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@ -1651,7 +1651,9 @@ Editor::leave_handler (ArdourCanvas::Item* item, GdkEvent*, ItemType item_type)
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bool is_start;
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bool is_start;
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bool ret = true;
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bool ret = true;
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_enter_stack.pop_back();
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if (!_enter_stack.empty()) {
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_enter_stack.pop_back();
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}
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switch (item_type) {
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switch (item_type) {
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case ControlPointItem:
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case ControlPointItem:
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