Make interned strings immortal.

ericsnowcurrently · ericsnowcurrently · commit 13f3b8f76844 · 2023-03-21T15:37:59.000-06:00
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
@@ -14622,6 +14622,9 @@ PyUnicode_InternInPlace(PyObject **p)
         return;
     }
 
+    /* Immortalize the object. */
+    _Py_SetImmortal(s);
+
     /* The two references in interned dict (key and value) are not counted by
        refcnt. unicode_dealloc() and _PyUnicode_ClearInterned() take care of
        this. */

Original file line number	Diff line number	Diff line change
`@@ -14622,6 +14622,9 @@ PyUnicode_InternInPlace(PyObject **p)`
`14622`	`14622`	`return;`
`14623`	`14623`	`}`
`14624`	`14624`
	`14625`	`+ /* Immortalize the object. */`
	`14626`	`+ _Py_SetImmortal(s);`
	`14627`	`+`
`14625`	`14628`	`/* The two references in interned dict (key and value) are not counted by`
`14626`	`14629`	`refcnt. unicode_dealloc() and _PyUnicode_ClearInterned() take care of`
`14627`	`14630`	`this. */`