bug#50308: Error during redisplay

[Eli Zaretskii]

> From: Frank Li <frankqunli@gmail.com>
> Date: Tue, 31 Aug 2021 16:43:39 -0400
> 
> Error during redisplay: (jit-lock-function 1501) signaled (invalid-regexp 
> "Regular expression too big")
> Error during redisplay: (jit-lock-function 2001) signaled (invalid-regexp 
> "Regular expression too big")
> Error during redisplay: (jit-lock-function 2501) signaled (invalid-regexp 
> "Regular expression too big")
> Error during redisplay: (jit-lock-function 3001) signaled (invalid-regexp 
> "Regular expression too big")
> Error during redisplay: (jit-lock-function 3501) signaled (invalid-regexp 
> "Regular expression too big")
> Error during redisplay: (jit-lock-function 4001) signaled (invalid-regexp 
> "Regular expression too big")
> Error during redisplay: (jit-lock-function 4501) signaled (invalid-regexp 
> "Regular expression too big")
> Error during redisplay: (jit-lock-function 5001) signaled (invalid-regexp 
> "Regular expression too big")
> Error during redisplay: (jit-lock-function 5501) signaled (invalid-regexp 
> "Regular expression too big")

Do you have a recipe for reproducing this problem?  Or can you
describe when did that happen to you, what kind of files were you
visiting and in which major modes?

Thanks.