Bug#977578: python3-opencv: Incomplete dependency on libcharls2

[M. Zhou]

Control: tags -1 +moreinfo

Hi,

I'm confused.

On Wed, 2020-12-16 at 19:42 -0800, Dima Kogan wrote:
> Hi. I just upgraded my python opencv bindings on Debian/sid:
>   apt install python3-opencv
[...]
> I had libcharls2=2.0.0+dfsg-1 (the current stable release). It called
[...]
> libcharls2 to the current Debian/sid version fixed the problem.

A package in sid is built against sid, why is it expected to work
with a package in stable? And as described, this problem does not
exist when libcharls2/sid is correctly installed. What should I fix?