\keyword, \solution, etc broken
No Idea why, xifthen-package does not work as specified: \isempty not defined
Der Projekt-Lifecycle auf git.rwth-aachen.de (Siehe: https://help.itc.rwth-aachen.de/service/ubrf9cmzd17m/article/1a0cfe327ffd46d7a62ab48df29c5b72/) wurde repariert und arbeitet derzeit ausstehende Projekte ab. Daher kommt es zu erhöhtem Mail-Aufkommen bei Projekten mit längerer Inaktivität.
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The project lifecycle on git.rwth-aachen.de (see: https://help.itc.rwth-aachen.de/service/ubrf9cmzd17m/article/1a0cfe327ffd46d7a62ab48df29c5b72/) has been repaired and is currently processing pending projects. As a result, there is an increased volume of mail for projects with longer periods of inactivity.
No Idea why, xifthen-package does not work as specified: \isempty not defined