Designer problem when connected into loop

Is connecting workflow in loop supported? Can I connect output to a block that was executed before the block with output.

I have a weird bug, Stumbled across it by accident.

I have if/else activity preceeded by http endpoint. By accident (first time) I dragged unconnected done output to http endpoint activity. And it erased my whole workflow.
When I recorded I did it twice, once it didn't erase (I just had to renter workflow again), second time it erased whole workflow.

The gif I recorded seems to be too big so here it is:
https://www.dropbox.com/s/odyxdegk8auqyns/2021-03-22-14-52-58.gif?dl=0
You'll need to download since Dropbox preview doesn't seem to like it.