Fix IPAM view for release-22.1

services/web/apps/ip/ipam/views.py

@@ -37,7 +37,7 @@ class IPAMApplication(ExtApplication):
     ADDRESS_SPOT_DIST = 8  # Area around used address to show in free spot
     MAX_IPv4_NET_SIZE = 256  # Cover whole IPv4 prefix with spot if size below
 
-    def get_prefix_spot(self, prefix, sep=True, extra=None):
+    def get_prefix_spot(self, prefix, sep=False, extra=None):
         """
         Return addresses around existing ones
         """
@@ -324,7 +324,7 @@ class IPAMApplication(ExtApplication):
                     [
                         {"address": z[0], "isFree": True}
                         for z in spot
-                        if str(z[0]) not in allocated_addresses
+                        if z[0] and str(z[0]) not in allocated_addresses
                     ]
                     if spot
                     else []