docs: Add precision on editable string lists

docs/sphinx/reference-properties.rst

@@ -741,6 +741,9 @@ Property Modification Functions
    :param    val:  The actual string value stored and will be returned by :c:func:`obs_data_get_string`
    :returns: The index of the list item.
 
+   Note: If ``p`` is of type OBS_COMBO_TYPE_EDITABLE, :c:func:`obs_data_get_string` will return ``name`` instead of
+   ``val``.
+
 ---------------------
 
 .. function:: size_t obs_property_list_add_int(obs_property_t *p, const char *name, long long val)
@@ -771,6 +774,9 @@ Property Modification Functions
    :param    name: Localized name shown to user
    :param    val:  The actual string value stored and will be returned by :c:func:`obs_data_get_string`
 
+   Note: If ``p`` is of type OBS_COMBO_TYPE_EDITABLE, :c:func:`obs_data_get_string` will return ``name`` instead of
+   ``val``.
+
 ---------------------
 
 .. function:: void obs_property_list_insert_int(obs_property_t *p, size_t idx, const char *name, long long val)

docs/sphinx/reference-settings.rst

@@ -188,6 +188,9 @@ Get Functions
 
 .. function:: const char *obs_data_get_string(obs_data_t *data, const char *name)
 
+   Note: If the data object was generated from a OBS_COMBO_TYPE_EDITABLE property, the property's ``name`` will be
+   returned instead of its ``val``.
+
 ---------------------
 
 .. function:: long long obs_data_get_int(obs_data_t *data, const char *name)