The JS tests for the ListEditView had a couple bugs. First was that we

had a mix of string characters, with both backtick strings and

single-quote strings that were concatenated. This meant that the

generated <input> element had some garbage characters in it with extra

quotes and + signs.
Second was that the default row HTML we were creating was only being passed

to the template, and not also to the view.

Ran js-tests and saw all djblets tests pass.