patch 8.1.0167: lock flag in new dictitem is reset in many places

Problem:    Lock flag in new dictitem is reset in many places.
Solution:   Always reset the lock flag.

src/channel.c

@@ -5742,7 +5742,6 @@ job_info(job_T *job, dict_T *dict)
     item = dictitem_alloc((char_u *)"channel");
     if (item == NULL)
 	return;
-    item->di_tv.v_lock = 0;
     item->di_tv.v_type = VAR_CHANNEL;
     item->di_tv.vval.v_channel = job->jv_channel;
     if (job->jv_channel != NULL)

src/dict.c

@@ -188,7 +188,8 @@ dict_free_items(int copyID)
 /*
  * Allocate a Dictionary item.
  * The "key" is copied to the new item.
- * Note that the value of the item "di_tv" still needs to be initialized!
+ * Note that the type and value of the item "di_tv" still needs to be
+ * initialized!
  * Returns NULL when out of memory.
  */
     dictitem_T *
@@ -201,6 +202,7 @@ dictitem_alloc(char_u *key)
     {
 	STRCPY(di->di_key, key);
 	di->di_flags = DI_FLAGS_ALLOC;
+	di->di_tv.v_lock = 0;
     }
     return di;
 }
@@ -338,7 +340,6 @@ dict_add_number(dict_T *d, char *key, varnumber_T nr)
     item = dictitem_alloc((char_u *)key);
     if (item == NULL)
 	return FAIL;
-    item->di_tv.v_lock = 0;
     item->di_tv.v_type = VAR_NUMBER;
     item->di_tv.vval.v_number = nr;
     if (dict_add(d, item) == FAIL)
@@ -361,7 +362,6 @@ dict_add_string(dict_T *d, char *key, char_u *str)
     item = dictitem_alloc((char_u *)key);
     if (item == NULL)
 	return FAIL;
-    item->di_tv.v_lock = 0;
     item->di_tv.v_type = VAR_STRING;
     item->di_tv.vval.v_string = str != NULL ? vim_strsave(str) : NULL;
     if (dict_add(d, item) == FAIL)
@@ -384,7 +384,6 @@ dict_add_list(dict_T *d, char *key, list_T *list)
     item = dictitem_alloc((char_u *)key);
     if (item == NULL)
 	return FAIL;
-    item->di_tv.v_lock = 0;
     item->di_tv.v_type = VAR_LIST;
     item->di_tv.vval.v_list = list;
     ++list->lv_refcount;
@@ -408,7 +407,6 @@ dict_add_dict(dict_T *d, char *key, dict_T *dict)
     item = dictitem_alloc((char_u *)key);
     if (item == NULL)
 	return FAIL;
-    item->di_tv.v_lock = 0;
     item->di_tv.v_type = VAR_DICT;
     item->di_tv.vval.v_dict = dict;
     ++dict->dv_refcount;

src/ex_cmds2.c

@@ -1524,7 +1524,6 @@ add_timer_info(typval_T *rettv, timer_T *timer)
 	    di->di_tv.v_type = VAR_FUNC;
 	    di->di_tv.vval.v_string = vim_strsave(timer->tr_callback);
 	}
-	di->di_tv.v_lock = 0;
     }
 }
 

src/if_perl.xs

@@ -1200,10 +1200,8 @@ perl_to_vim(SV *sv, typval_T *rettv)
 
 		    if ((item = dictitem_alloc((char_u *)key)) == NULL)
 			break;
-
+		    item->di_tv.v_type = VAR_NUMBER;
-		    item->di_tv.v_type		= VAR_NUMBER;
+		    item->di_tv.vval.v_number = 0;
-		    item->di_tv.v_lock		= 0;
-		    item->di_tv.vval.v_number	= 0;
 
 		    if (dict_add(dict, item) == FAIL) {
 			dictitem_free(item);

src/if_py_both.h

@@ -1832,7 +1832,6 @@ DictionaryAssItem(
 	    PyErr_NoMemory();
 	    return -1;
 	}
-	di->di_tv.v_lock = 0;
 	di->di_tv.v_type = VAR_UNKNOWN;
 
 	if (dict_add(dict, di) == FAIL)
@@ -2038,7 +2037,6 @@ DictionaryUpdate(DictionaryObject *self, PyObject *args, PyObject *kwargs)
 		    PyErr_NoMemory();
 		    return NULL;
 		}
-		di->di_tv.v_lock = 0;
 		di->di_tv.v_type = VAR_UNKNOWN;
 
 		valObject = PySequence_Fast_GET_ITEM(fast, 1);
@@ -5852,7 +5850,6 @@ pydict_to_tv(PyObject *obj, typval_T *tv, PyObject *lookup_dict)
 	    dict_unref(dict);
 	    return -1;
 	}
-	di->di_tv.v_lock = 0;
 
 	if (_ConvertFromPyObject(valObject, &di->di_tv, lookup_dict) == -1)
 	{
@@ -5950,7 +5947,6 @@ pymap_to_tv(PyObject *obj, typval_T *tv, PyObject *lookup_dict)
 	    PyErr_NoMemory();
 	    return -1;
 	}
-	di->di_tv.v_lock = 0;
 
 	if (_ConvertFromPyObject(valObject, &di->di_tv, lookup_dict) == -1)
 	{

src/userfunc.c

@@ -2390,7 +2390,6 @@ ex_function(exarg_T *eap)
 		/* overwrite existing dict entry */
 		clear_tv(&fudi.fd_di->di_tv);
 	    fudi.fd_di->di_tv.v_type = VAR_FUNC;
-	    fudi.fd_di->di_tv.v_lock = 0;
 	    fudi.fd_di->di_tv.vval.v_string = vim_strsave(name);
 
 	    /* behave like "dict" was used */

src/version.c

@@ -789,6 +789,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    167,
 /**/
     166,
 /**/