Fixed segmentation fault when accessing null pointer obj. #148
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Updating a configuration from an XML file as follows using yangcli caused a segmentation fault for some (not all) XML files:
$ merge /interfaces/interface[name='sw0p2']/gate-parameters [email protected]
gdb showed an access to a NULL pointer: obj is NULL in function obj_is_choice_or_case( obj_template_t* obj )
Fixed by testing for obj being NULL before accessing it.