Repro steps
1. Open a shadergraph
2. Move something so that it dirties the shadergraph, don't save
3. Open game or scene view
4. Click the 3 vertical dots icon in the upper right and choose "Maximize"
Expected result: the "do you want to save" dialog should not happen and the shadergraph should be the way you left it when you un-maximize
Actual result: there is a "do you want to save" dialog, in later versions if you press "cancel" it undocks the shadergraph tab, leading to both a docked and undocked tab for the same shadergraph if you un-maximize (which shouldn't be possible).