I found an issue in last version of AvalonDock (2.6)
If I dock anchorable as document and then undock it, content of anchorable become empty. But If I dock it again as document, it will display content correctly.
In curent lifecycle there will be impossible to see the content inside anchorable window, which was docked as document - only if I dock it as document again.
In the same time I could dock my anchorable to any anchorable side and content will always be visible and displays correctly.
If I dock anchorable as document and then undock it, content of anchorable become empty. But If I dock it again as document, it will display content correctly.
In curent lifecycle there will be impossible to see the content inside anchorable window, which was docked as document - only if I dock it as document again.
In the same time I could dock my anchorable to any anchorable side and content will always be visible and displays correctly.
