Alright @sam, I’ve got steps to reproduce. No idea if this is related to OP’s original issue (since this conversation has veered off a bit), but either way here’s what I have. Basically, if you open tab 2 but continue typing in tab 1 before tab 2 has fully loaded the new page gets into a bad state. If you continue typing in tab 1 while tab 2 is still loading, tab 2 will load the draft from tab 1 as it was when the page was opened, but you will still be able to edit in tab 2 even after tab 1 has saved additional changes (thus overwriting those changes). Here are steps to reproduce:
- Open topic A and start composing a reply.
- Stop typing so the draft is saved.
- Open topic A in a new tab (Duplicate tab or right/center clicking the topic title is the easiest way to reproduce since they have to do a full page load and are therefore slower).
- Immediately continue composing the reply in tab 1, before tab 2 has finished loading.
- Stop typing so the the draft is saved again (this will succeed, as expected).
- Go to tab 2 and type in the composer.
- Stop typing. The draft will be saved even though the warning should appear. This will overwrite all the additional changes you made in tab 1 from step #4. (If you get the warning as expected you probably waited too long to start typing in step #4.) Note that at this point you also cannot type in tab 1 again without refreshing that tab.
Note that in step #4, you don’t actually need to stop typing and save a draft before tab 2 finishes loading. Just starting to type is what gets everything in a bad state. It’s actually not unreasonable to open a duplicate tab in the background to check stuff later and continue typing in tab 1 in the meantime. But doing that too quickly will get the tabs in a bad state and allow you to accidentally overwrite what you added in tab 1. Of course, minimizing the composer also saves a draft, so once you get into this bad state just minimizing the composer in tab 2 to get it out of your way will overwrite your latest draft from tab 1.
At this point if you go back to tab 1 where you originally were composing your message, you can no longer type and will get the warning that should have shown up in tab 2. If you realize that your draft was lost you can of course copy the contents of the composer from tab 1. But if you didn’t realize and reload the page (following the instructions of the warning), you will lose the changes you made and have no way of getting them back.
Let me know if you still have trouble reproducing the issue with those steps. I can reproduce the issue pretty consistently following those steps (occasionally switching to new topics to get fresh drafts), so hopefully that’s enough information.