…eads when get_properties returns a hash table with (inaccessible) dynamic numeric properties).
FilesystemIterator's iterators are requested more than once without having had its dtor callback called in between).
…anding leak already fixed in trunk/5.3 and now merged onto 5.4 and a leak introduced in fixing bug #61115. This better fix for #61115 fixes the leak (the inhibition for deleting the context was too broad) and so prevents segfaults in new circumstances (where the inhibition was not broad enough).
…at don't exist in ISO-8859-1.