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Author SHA1 Message Date
Nick Wellnhofer
1abf2967f9 Fix exponential runtime and memory in xi:fallback processing 
When creating XML_XINCLUDE_START nodes, the children of the original
xi:include node must be freed, otherwise fallback content is copied
twice, doubling runtime and memory consumption for each nested
xi:fallback/xi:include pair.

Found with libFuzzer.
 2020-08-07 19:59:07 +02:00