As of 1.8.4, if I have a Suggest fieldtype in a grid, I get a fatal JavaScript error (Uncaught TypeError: Cannot read property 'replace' of undefined ascent.min.js?v=1.8.2:25).

I've attached two screenshots showing that the form loads normally when the Suggest w/ a grid is removed from the fieldset.

Has anyone dealt with this or have a solution? I found this, but it didn't work for me and I don't want to mess around with core.

With Grid and broken Screen Shot 2014-09-17 at 1.18.44 AM.png

Without Grid and working Screen Shot 2014-09-17 at 1.19.19 AM.png

Answered by Jason Varga! Go to answer.