FIX: Remote theme record not saved when checking for updates (PR #8054)

Right now if you check for updates on remote theme, the “last checked” time doesn’t change and the number of new commits remains 0 because the record wasn’t saved. This makes it impossible to update remote theme via the UI. It seems this regression is a side effect of this commit: FIX: Ensure live-reloading of theme CSS works first time (#8052) · discourse/discourse@98fbc01 · GitHub.



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