### **Environment**:

Your OpenProject Version: 12.0.5

### **Steps to reproduce:**

1. Begin of the insertionChoose N and set the minimum objects per page under Admin -> System Settings -> General to N (e.g. 5)
2. End of the insertion Create Begin of the insertionN + 1End of the insertion Begin of the deletion 101End of the deletion projects
Begin of the insertion3.End of the insertion Begin of the deletion 2.End of the deletion Create a new project and try to set the first project you created in step 1 as its parent (without going to said project first)

Note: the same issues applies when trying to change an existing project's parent.

### **Actual Behavior**

Only the Begin of the insertionNEnd of the insertion most Begin of the deletion 100 mostEnd of the deletion recently created projects are offered in the parent selection.

### **Expected Behavior**

Every suitable project should be offered.

**Discussion**

When loading the project settings or creating a new project the available projects API is called without any filters once. It just returns all projects. Since it's paginated, it only returns the last Begin of the insertionN.End of the insertion Begin of the deletion 100.End of the deletion

This result then is filtered client-side in the parent selection auto completer.

Instead when the user types in the auto-completer the available projects API should be called with the user's query as a project name filter.