I have now lost the contents of a new article/post twice when trying to save:
1 - Type content in the panel, wait a bit
2 - Hit the save button
3 - Login has timed out, so login window pops up
4 - I log back in
5 - I am taken back to the panel, but I am now no longer in the text editor
6 - Re-open the page or post in question
7 - No content is there, or the edits are all missing.
I am a bit surprised that there is no auto-save function. That would seem to be the standard for most editor interfaces this century.
So how can I prevent this from happening again?