ProseMirror warning when exiting display math

[inducer]

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To reproduce: Press Cursor-Right at the end of a display/block math environment. The following shows up in the browser console:

TextSelection endpoint not pointing into a node with inline content (doc)
checkTextSelection @ index.js:221
TextSelection @ index.js:235
create @ index.js:281
(anonymous) @ prosemirror-math.js:27
(anonymous) @ index.js:99
(anonymous) @ index.js:3132
someProp @ index.js:5490
editHandlers.keydown @ index.js:3132
view.dom.addEventListener.view.input.eventHandlers.<computed> @ index.js:3052

This is reproducible on the demo site.