Pasting after black hole deletion doesn't work

[AndrewRadev]

I have a similar problem with my own plugin, here: AndrewRadev/whitespaste.vim#2.

If you try to "_dd and then immediately hit p, nothing happens. Only after you type p a second time does pasting work.

From my investigation, it seems like the v:register variable is not reset correctly after the "_dd operation. I opened a thread on the vim-dev mailing list which might provide a good solution, but one way to avoid the issue for the _ register in particular is to check for it explicitly. Sadly, this doesn't solve the larger issue, but might at least help for the common case of black hole deletion.