diff --git a/pkg/models/task_collection.go b/pkg/models/task_collection.go
index 4651f72bc..227caaa46 100644
--- a/pkg/models/task_collection.go
+++ b/pkg/models/task_collection.go
@@ -35,11 +35,9 @@ type TaskCollection struct {
 	Search string `query:"s" json:"s"`
 
 	// The query parameter to sort by. This is for ex. done, priority, etc.
-	SortBy    []string `query:"sort_by" json:"sort_by"`
-	SortByArr []string `query:"sort_by[]" json:"-"`
+	SortBy []string `query:"sort_by" json:"sort_by"`
 	// The query parameter to order the items by. This can be either asc or desc, with asc being the default.
-	OrderBy    []string `query:"order_by" json:"order_by"`
-	OrderByArr []string `query:"order_by[]" json:"-"`
+	OrderBy []string `query:"order_by" json:"order_by"`
 
 	// The filter query to match tasks by. Check out https://vikunja.io/docs/filters for a full explanation.
 	Filter string `query:"filter" json:"filter"`
@@ -56,8 +54,7 @@ type TaskCollection struct {
 	// If set to `reactions`, the reactions of each task will be present in the response.
 	// If set to `comments`, the first 50 comments of each task will be present in the response.
 	// You can set this multiple times with different values.
-	Expand    []TaskCollectionExpandable `query:"expand" json:"-"`
-	ExpandArr []TaskCollectionExpandable `query:"expand[]" json:"-"`
+	Expand []TaskCollectionExpandable `query:"expand" json:"-"`
 
 	isSavedFilter bool
 
@@ -107,18 +104,6 @@ func validateTaskField(fieldName string) error {
 }
 
 func getTaskFilterOptsFromCollection(tf *TaskCollection, projectView *ProjectView) (opts *taskSearchOptions, err error) {
-	if len(tf.SortByArr) > 0 {
-		tf.SortBy = append(tf.SortBy, tf.SortByArr...)
-	}
-
-	if len(tf.OrderByArr) > 0 {
-		tf.OrderBy = append(tf.OrderBy, tf.OrderByArr...)
-	}
-
-	if len(tf.ExpandArr) > 0 {
-		tf.Expand = append(tf.Expand, tf.ExpandArr...)
-	}
-
 	var sort = make([]*sortParam, 0, len(tf.SortBy))
 	for i, s := range tf.SortBy {
 		param := &sortParam{
@@ -272,18 +257,12 @@ func (tf *TaskCollection) ReadAll(s *xorm.Session, a web.Auth, search string, pa
 		// By prepending sort options before the saved ones from the filter, we make sure the supplied sort
 		// options via query take precedence over the rest.
 
-		sortby := append(tf.SortBy, tf.SortByArr...)
-		sortby = append(sortby, sf.Filters.SortBy...)
-		sortby = append(sortby, sf.Filters.SortByArr...)
+		sortby := append(tf.SortBy, sf.Filters.SortBy...)
 
-		orderby := append(tf.OrderBy, tf.OrderByArr...)
-		orderby = append(orderby, sf.Filters.OrderBy...)
-		orderby = append(orderby, sf.Filters.OrderByArr...)
+		orderby := append(tf.OrderBy, sf.Filters.OrderBy...)
 
 		sf.Filters.SortBy = sortby
-		sf.Filters.SortByArr = nil
 		sf.Filters.OrderBy = orderby
-		sf.Filters.OrderByArr = nil
 
 		if sf.Filters.FilterTimezone == "" {
 			u, err := user.GetUserByID(s, a.GetID())
@@ -297,8 +276,7 @@ func (tf *TaskCollection) ReadAll(s *xorm.Session, a web.Auth, search string, pa
 		tc.ProjectViewID = tf.ProjectViewID
 		tc.ProjectID = tf.ProjectID
 		tc.isSavedFilter = true
-		tc.Expand = append(tf.Expand, tf.ExpandArr...)
-		tc.ExpandArr = nil
+		tc.Expand = tf.Expand
 
 		if tf.Filter != "" {
 			if tc.Filter != "" {
diff --git a/pkg/models/tasks.go b/pkg/models/tasks.go
index b7515b40a..236bc7bca 100644
--- a/pkg/models/tasks.go
+++ b/pkg/models/tasks.go
@@ -141,8 +141,7 @@ type Task struct {
 	CommentCount *int64 `xorm:"-" json:"comment_count,omitempty"`
 
 	// Behaves exactly the same as with the TaskCollection.Expand parameter
-	Expand    []TaskCollectionExpandable `xorm:"-" json:"-" query:"expand"`
-	ExpandArr []TaskCollectionExpandable `xorm:"-" json:"-" query:"expand[]"`
+	Expand []TaskCollectionExpandable `xorm:"-" json:"-" query:"expand"`
 
 	// The position of the task - any task project can be sorted as usual by this parameter.
 	// When accessing tasks via views with buckets, this is primarily used to sort them based on a range.
@@ -1966,7 +1965,6 @@ func (t *Task) Delete(s *xorm.Session, a web.Auth) (err error) {
 // @Router /tasks/{id} [get]
 func (t *Task) ReadOne(s *xorm.Session, a web.Auth) (err error) {
 
-	t.Expand = append(t.Expand, t.ExpandArr...)
 	expand := t.Expand
 	if err = t.resolveIDFromProjectAndIndex(s); err != nil {
 		return
diff --git a/pkg/models/tasks_permissions.go b/pkg/models/tasks_permissions.go
index 71459b13f..c4f07aaa3 100644
--- a/pkg/models/tasks_permissions.go
+++ b/pkg/models/tasks_permissions.go
@@ -40,7 +40,6 @@ func (t *Task) CanCreate(s *xorm.Session, a web.Auth) (bool, error) {
 
 // CanRead determines if a user can read a task
 func (t *Task) CanRead(s *xorm.Session, a web.Auth) (canRead bool, maxPermission int, err error) {
-	t.Expand = append(t.Expand, t.ExpandArr...)
 	expand := t.Expand
 	if err = t.resolveIDFromProjectAndIndex(s); err != nil {
 		return