[LH2912] Removing a custom meta-data item resets all outline included fields

I have several pieces of custom meta-data. I had included a “synopsis” item so I could look at the synopsis while I was entering other meta-data, but that really didn’t work out; it was easier to include the synopsis in the outliner view I almost always have open.

So I deleted it.

The outline had shown
Title & synopsis, month, day, year [custom calendar that does not fit Gregorian], keywords.

After I deleted that custom meta-data field, the outline suddenly showed
Title, word count, label.

That was unexpected.

Worse: the field selector dropdown still shows all the fields previously shown as still selected.

Thanks. This has been filed.