chore: adjust default handling for min_intervals in user_provided_flags (#5715)

Author: toriwei

sqlmesh/cli/main.py

@@ -535,7 +535,7 @@ def diff(ctx: click.Context, environment: t.Optional[str] = None) -> None:
 )
 @click.option(
     "--min-intervals",
-    default=0,
+    default=None,
     help="For every model, ensure at least this many intervals are covered by a missing intervals check regardless of the plan start date",
 )
 @opt.verbose

sqlmesh/core/context.py

@@ -1556,6 +1556,7 @@ def plan_builder(
         run = run or False
         diff_rendered = diff_rendered or False
         skip_linter = skip_linter or False
+        min_intervals = min_intervals or 0
 
         environment = environment or self.config.default_target_environment
         environment = Environment.sanitize_name(environment)