Setting text contents via script changes formatting

Setting textItem contents for an empty text layer via script changes the text layer formatting. Verified on both Windows 10 Pro and Mac Sequoia, Photoshop 26.4.1.

1. Create a new document.

2. Add a type layer with the text tool, type in a few characters

3. Manually set font and size formatting

4. Manually select and delete the text, clicking the checkmark in the Options bar to leave a blank type layer

5. Run the following code snippet:

var docRef = app.activeDocument;
var layerRef = docRef.activeLayer;
var textRef = layerRef.textItem;
textRef.contents = Window.prompt('Enter text');

Result: The text size and font will change to Myriad Pro 9 point. This is regardless of the setting in Preferences/Settings->Type->Set default font size automatically

Expected: Size and font will remain the same

Double-clicking the type layer in the Layers panel and then manually typing in characters retains the previous formatting