(5.0.8 Gallery) Using AJAX edit to rename works but not saving to DB

EDIT: (I think what is happening is that when you rename an image in Gallery, it updates on the web page you are seeing but doesn't update the database. so when you go to Edit mode, the original image title is still displayed)

Upload a Gallery image and it likely has a title from the filename such as large.0C8CB1F2-85A6-4201-B91A-E25BBFCA3FFC.jpeg.567d71c52b514d4d7b085abea85a125f.jpg

Once the image has uploaded, hold mouse button on the name of the image to rename it via AJAX.

Change the name to something like Margarita Pizza.

The image title is re-named okay.

Then click on Actions > Edit

In the Caption field the original title is displayed, not the new one.