Incorrect braces matching in Django templates/web-mode

[darkfeline]

This is the same as #1333

Reproduce: Type {{<SPC> in web-mode.
Expected: Expands to {{<SPC><SPC>}}.
Actual: Expands to {{<SPC><SPC>}}}.

I have a relatively clean Spacemacs on a work computer that exhibits this; I will endeavor to post the SPC h d s within a few days.

The workaround posted in the old issue fixes the problem:

(sp-local-pair 'web-mode "<" nil :actions '(:rem insert))
(sp-local-pair 'web-mode "{" nil :actions '(:rem insert))

[TheBB]

This is fixed by #4728 and a duplicate of #4499.