wrong security patch date

After a fresh load of eOS sources with: repo init -u https://gitlab.e.foundation/e/os/releases.git -b v0.9.0-pie and also with repo init -u https://gitlab.e.foundation/e/os/releases.git -b v0.9.1-pie and also with repo init -u https://gitlab.e.foundation/e/os/releases.git -b v1-pie

the security patch version is always not actual:

  PLATFORM_SECURITY_PATCH := 2020-05-05