ly_ctx_load_module() issue

[awesomenode]

Hi,

I found that ly_ctx_load_module() crashes with a NULL-pointer dereference in ly_ctx_new_change() when all of the following conditions are met:

1. The context was created with LY_CTX_ALL_IMPLEMENTED.
2. The loaded module derives an identity from an imported module - identity derived { base imported:base-type; }.
3. The imported module contains at least one data node (e.g., a leaf).

Reproduction is attached.

repro.zip

Used libyang 5.4.9

Thanks!

[michalvasko]

Thanks, fixed.