Key signature changes (naturals) can not be hidden after in a new section in Cmajor/aminor or atonal

A score that after a g minor key has a new section in C major/aminor.

MuseScore 2: After a change of key and a Section Break it is possible to hide the warning becuts. (Deactivating Courtesy key singatures in Style>Page)

MuseScore 3. The Section Break does not have any effect over naturals, even though Style> Page is disabled "create courtesy armors".