Below is two translateable messages from Evolution:

  #: addressbook/addressbook-errors.xml.h:68
  msgid "Some features may not work correctly with your current server version"
        
  #: calendar/calendar-errors.xml.h:146
  msgid " Some features may not work correctly with your current server
version "

I see no obvious reason why the calendar message should have a leading
and trailing whitespace. If those whitespaces were removed, translators
would only have to translate one such message instead of two, the
translation would automatically be reused, and there would be no string
freeze problems.
Please make the calendar message identical to the addressbook one.