100.0% cache miss when using osc with debbuild

[ermiertrat]

Describe the bug
This looks like the same issue as #321 , which seems to have been re-introduced by 4edd479 .

Versions

> (source /etc/os-release; echo $PRETTY_NAME)
openSUSE Tumbleweed
> rpm -q osc
osc-1.13.0-1.1.noarch

To Reproduce
As an example I will use home:lnussel:debbuild/initrd

1. osc co home:lnussel:debbuild/initrd
2. osc build Debian_12 x86_64

Expected behavior

> osc build
Building initrd.spec for Debian_12/x86_64
*snip*
Updating cache of required packages
0.0% cache miss. 193/193 dependencies cached.

WARNING: deb packages get not verified, they can compromise your system !
Writing build configuration
Running build

Screenshots, console outputs

> osc build
Building initrd.spec for Debian_12/x86_64
*snip*
Updating cache of required packages
100.0% cache miss. 0/193 dependencies cached.

Debian:12/adduser: attempting download from api, since not found
...

Additional context
I have opened a PR #1732 , which seems to fix the issue for me. However, I'm not sure if anything else needs to be changed given the age of the issue.