(cherry picked from commit 073950043ed65039e19be8a4b6d725a44a662879)
Reconcile-note: this datefix was missing from the solidify line (aa30d40's test_arch_converge.py had no _current_month_day and still failed in November, while 10023fb/6841f28 contained it); added here as the separately-labeled fix for that replay omission, per the reconcile brief.