implement pairlock side further

freqtrade/plugins/protections/iprotection.py

@@ -20,7 +20,7 @@ class ProtectionReturn:
     lock: bool
     until: datetime
     reason: Optional[str]
-    lock_side: Optional[str] = None
+    lock_side: str = '*'
 
 
 class IProtection(LoggingMixin, ABC):

freqtrade/plugins/protections/stoploss_guard.py

@@ -65,7 +65,7 @@ class StoplossGuard(IProtection):
             lock=True,
             until=until,
             reason=self._reason(),
-            lock_side=(side if self._only_per_side else None)
+            lock_side=(side if self._only_per_side else '*')
             )
 
     def global_stop(self, date_now: datetime, side: LongShort) -> Optional[ProtectionReturn]: