A change introduced in commit 5b11f47f0d59c95f6dcf1ff75badede5ec84e72e [1] causes postgresql12-server not to be able to start via its rc script.

The %%PG_VERSION%% variable does not get expanded, and the resulting rc script ends up using the literal string.

This likely affects versions 10 through 14 as their files/postgresql.in files all have the same string on line 35. As a side note, postgresql15-server is hardcoded to point to ${postgresql_user}/data14 which might cause some funny issues as well.

The problem was reported earlier in #264097 but the PR was closed because it referenced portmaster and not postgresqlXX-server.

[1] diff excerpt:
-eval postgresql_data=${postgresql_data:-"~${postgresql_user}/data12"}
+eval postgresql_data=${postgresql_data:-"~${postgresql_user}/data%%PG_VERSION%%"}