GO-2026-6745 Vikunja: Explicit lower-permission share on a sub-project is silently overridden by an inherited parent permission (broken access control / privilege-management regression in v2.6.0) in code.vikunja.io/api

Vikunja: Explicit lower-permission share on a sub-project is silently overridden by an inherited parent permission broken access control / privilege-management regression in v2.6.0 in code.vikunja.io/api...