Fix #14296 - Segfault in ragg2

[radare]

This fix is probably not good, but we should add a test for it, and at some point rework on the ragg2 api cleanup with some refactorings

[codecov-io]

Codecov Report

Merging #14308 into master will decrease coverage by <.01%.
The diff coverage is 25%.

@@            Coverage Diff             @@
##           master   #14308      +/-   ##
==========================================
- Coverage   37.85%   37.85%   -0.01%     
==========================================
  Files         950      950              
  Lines      305735   305739       +4     
==========================================
- Hits       115732   115731       -1     
- Misses     190003   190008       +5

Impacted Files	Coverage Δ
libr/egg/egg_lang.c	37.08% <25%> (-0.06%)	⬇️
libr/core/project.c	57.47% <0%> (-0.34%)	⬇️

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