Merge branch 'mr/adjust_qualifier_serialization' into 'master'

Add missing key when serializing key/set qualifier to str

See merge request it/e3-core!36

src/e3/anod/__init__.py

@@ -18,12 +18,12 @@ def qualifier_dict_to_str(qual: dict) -> str:
             else:
                 # Empty string is used also for tag value. Should be removed
                 # once switch to dict is complete
-                tmp.append(f"{k}")
+                tmp.append(k)
         elif isinstance(v, bool):
             if v:
                 tmp.append(k)
         elif v:
-            tmp.append(";".join(sorted(v)))
+            tmp.append(f"{k}=" + ";".join(sorted(v)))
 
     return ",".join(sorted(tmp))