epub export and normalize-space() [was #11497]
[[http://textgridrep.de/services/aggregator/epub/textgrid:jkhx.0]]
Internal Server Error A sequence of more than one item is not allowed as the first argument of normalize-space() ("Aischylos", "Der gefesselte Prometheus") net.sf.saxon.s9api.SaxonApiException: A sequence of more than one item is not allowed as the first argument of normalize-space() ("Aischylos", "Der gefesselte Prometheus") at net.sf.saxon.s9api.XsltTransformer.transform(XsltTransformer.java:433) at info.textgrid.services.aggregator.epub.EPUBSerializer.createResponse(EPUBSerializer.java:95) at info.textgrid.services.aggregator.REST.getEPUB(REST.java:104) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)