<p>In <a href="https://github.com/geany/geany/pull/839#discussion_r49955549">tagmanager/src/tm_source_file.c</a>:</p>
<pre style='color:#555'>>  */
>  GEANY_API_SYMBOL
>  void tm_source_file_free(TMSourceFile *source_file)
>  {
> -  if (NULL != source_file)
</pre>
<p>This changes the contract of an API function: it used to be happy with a NULL source file, now it's not.  It should be fine as apparently neither Geany nor GP seem to rely on this, but I wonder if changing behavior has enough advantage to warrant a potentially breaking change.</p>

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