find_by(id:) and find_by!(id:) now raise ArgumentError when passed
a semantic identifier string, directing developers to use find() or
the new find_by_display_id() method instead. This avoids silently
altering ActiveRecord's find_by semantics and ensures misuse is
caught in development even when semantic mode is not enabled locally.
Renames find_by_id_or_identifier to find_by_display_id (public API)
and migrates all app callers that receive user-facing strings to use
the new method.
Both models are only supposed to be visible
to users that have some basic permissions in at least
one project. While the desired scoping is not very fine grained
(you either see all or nothing), it still makes sense for all
models to have such a scope for consistency purposes.
Allowing to search for users, e.g. to allow queries like
"find work packages assigned to Maria".
Allowing to find the current user, to enable classic use cases
like "find work packages assigned to me".
Klaus Zanders