Subject: bug#72830: Big rectangular selections are slow

From: Mattias Engdegård <[email-masked]>
Date: Thu, 29 Aug 2024 13:18:01 +0200

29 aug. 2024 kl. 12.22 skrev Mattias Engdegård <[email-masked]>:

> The patch below is crude but seems to work.

That phrase is highly effective for forcing bugs into daylight. Here is an improved version.

Previously, `exchange-point-and-mark` didn't regenerate the overlays because it wasn't necessary, but now it is, so we save point in our rectangle overlay tuple. (Should use a struct at this point.)