Comment 1 for bug 1924591

I would like to add that, looking at some old logs, we also noticed the same behavior from victoria to wallaby (during the last cycle) but they were hidden by the fact that cirros versions are the same between the 2 branches.
As a workaround, we're now reading the value of CIRROS_VERSION from stackrc, as can be seen in the patch linked by Radoslaw in the bug description.