fix: deep copy included tasks

taskfile/copy.go

@@ -0,0 +1,23 @@
+package taskfile
+
+import "golang.org/x/exp/constraints"
+
+func deepCopySlice[T any](orig []T) []T {
+	if orig == nil {
+		return nil
+	}
+	c := make([]T, len(orig))
+	copy(c, orig)
+	return c
+}
+
+func deepCopyMap[K constraints.Ordered, V any](orig map[K]V) map[K]V {
+	if orig == nil {
+		return nil
+	}
+	c := make(map[K]V, len(orig))
+	for k, v := range orig {
+		c[k] = v
+	}
+	return c
+}