Setting of space home page is not retained, causing home page to be set to blank when you edit space details

When you edit the space details, the 'Home Page' is not set to the current setting. It is set to:

1. "Home" if the space has a page called "Home" OR
2. blank otheriws. (The empty line is selected in the dropdown list.)
   This happens even if you have previously set a home page.

If you then change the space name or description but don't set the space home page, it's very confusing. By default, Confluence will now show the "Pages" view (Recently Updated, Alphabetical or Tree View) whenever anyone goes to the space, rather than the home page.

Instead, the 'Home Page' dropdown should retain the value as previously set.