[3.12] gh-85012: Properly reset msgctxt when compiling messages with msgfmt (GH-130525) (GH-131206)

Add also human-readable snapshots for tests.
(cherry picked from commit 7ea6e88eb490635518c63c3305c03baf3e151555)

Co-authored-by: Tomas R <tomas.roun8@gmail.com>

Serhiy Storchaka committed 1y ago

a3f488941388faa9974cad13fdda01a9bdb388af

Parent: ba36389

Committed by GitHub <noreply@github.com> on 3/13/2025, 7:09:42 PM