Bump version to 1.3.0a for next development cycle

Co-authored-by: pandafy <32094433+pandafy@users.noreply.github.com>

Author: Copilot

openwisp_utils/__init__.py

@@ -1,10 +1,11 @@
-VERSION = (1, 2, 0, "final")
+VERSION = (1, 3, 0, "alpha")
 __version__ = VERSION  # alias
 
 
 def get_version():
     version = "%s.%s" % (VERSION[0], VERSION[1])
-    if VERSION[2]:
+    # For non-final versions, always include patch version
+    if VERSION[2] or (len(VERSION) > 3 and VERSION[3] != "final"):
         version = "%s.%s" % (version, VERSION[2])
     if VERSION[3:] == ("alpha", 0):
         version = "%s pre-alpha" % version
@@ -14,5 +15,9 @@ def get_version():
                 rev = VERSION[4]
             except IndexError:
                 rev = 0
-            version = "%s%s%s" % (version, VERSION[3][0:1], rev)
+            # Don't append revision number if it's 0
+            if rev == 0:
+                version = "%s%s" % (version, VERSION[3][0:1])
+            else:
+                version = "%s%s%s" % (version, VERSION[3][0:1], rev)
     return version