fix: dynamic vars break with for because of fast-compiled tasks

variables.go

@@ -156,6 +156,10 @@ func (e *Executor) compiledTask(call taskfile.Call, evaluateShVars bool) (*taskf
 				if cmd.For.Var != "" {
 					if vars != nil {
 						v := vars.Get(cmd.For.Var)
+						// If the variable is dynamic, then it hasn't been resolved yet
+						// and we can't use it as a list. This happens when fast compiling a task
+						// for use in --list or --list-all etc.
+						if v.Value != nil && v.Sh == "" {
 							switch value := v.Value.(type) {
 							case string:
 								if cmd.For.Split != "" {
@@ -173,6 +177,7 @@ func (e *Executor) compiledTask(call taskfile.Call, evaluateShVars bool) (*taskf
 							}
 						}
 					}
+				}
 				// Name the iterator variable
 				var as string
 				if cmd.For.As != "" {