Hi! Here is a patch that fixes ctags invocation problem with the latest Kate.
Basically it reverts QProcess::start() call to its previous form which should be acceptable for Qt 5.12, 5.14. A complete solution is more complicated - Kate should split a command line and provide ctags arguments to Qt library as a list (QStringList). For me, this situation looks a little bit strange - now a part of library functionality which was available for quite a long time is moved from the library itself to an application using that library...
fix-ctags-command.patch
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