Block Options insert doesn't honour allowedBlocks

[Ipstenu]

I set a custom block to ONLY allow a specific kind of block on insert.

allowedBlocks={ [ [ 'library/listitem' ] ] }

This lets me add a block below and only adds the block I've permitted. Awesome. However if I then use the Block Options (the ... on the top of the block), it adds a paragraph every time. I can change this by using the slash command /listitem -- which properly is my only option, but it seems illogical that it doesn't honour my default.

Using WP 4.9.8, Gutenberg 4.0

[chrisvanpatten]

There are a few issues about this (as you saw!) also including #10726 so I'm going to try to consolidate everything into #10301 to keep things cleaner :) Thanks for the gif, I'll link over to that in the other ticket.