Bug#998141: opencv breaks auto-multiple-choice autopkgtest

[Alexis Bienvenüe]

Hi.

Than you for your report.

After rebuilding auto-multiple-choice from the same 1.5.1-2 sources in
a sid environment, it passes the autopkgtest.
Maybe this is related to this issue, where it is said that OpenCV 4.x
releases don't guarantee ABI compatibility:
https://github.com/opencv/opencv/issues/20878

Regards,
Alexis.