chore(release): prepare from v8.1.13

src/system/__version__.py

@@ -1,6 +1,6 @@
 """Package information."""
 
-__version__ = "8.1.12"
-__build__ = "2021111810"
-__cycle__ = ".post3"
+__version__ = "8.1.13"
+__build__ = "2021122108"
+__cycle__ = ""
 __package_version__ = "{0}{1}".format(__version__, __cycle__)

src/system/tag.py

@@ -795,6 +795,10 @@ def storeTagHistory(
     paths). Instead, the cache must first be cleared, and then a new
     entry will be added the next time this function is called.
 
+    If a Tag's datatype changes after recording Tag history, this
+    function will create a new entry in the sqlth_te table to reflect
+    the change.
+
     Args:
         historyprovider: The historical provider to store to.
         tagprovider: The name of the realtime Tag provider to associate