Bug: Mysql2::Error: Out of sort memory - corrupt page

[ishields]

I was editing a page on product and started getting this.

Mysql2::Error: Out of sort memory, consider increasing server sort buffer size

Upon digging into it I think I accidentally pasted an image into a text block. I didn't notice as the text box likely hid it but then when I saved it put the text version of the image into it and then started getting this error. We should have some sort of validation on settings to prevent this. The only fix was to manually edit the db and remove it. Screenshot of the setting below