How to correct wrong / missing SVN annotation icons in Subclipse 1.2.4?

Annotation icons are the small icons placed on top of other icons, mainly in the package explorer view of Eclipse. In Subclipse 1.2.4, it can happen that these are no longer shown (or incorrectly shown), though the project is in SVN.

To correct missing icons, restart Eclipse or switch the workspace forth and back.

To correct wrong icons (like »?« where »in sync« should be), disconnect the project from SVN without deleting the SVN metadata, then reconnect.