Publisher v.1.8.3 gets the name of the page preset wrong

[MikeA]

Publisher displays incorrect preset name in File > Spread Setup. To replicate:

First test

Create a preset using the settings shown in screen shot "MagCloud-preset.jpg." In my tests I'm using these settings for a preset I've named "MagCloud 8 x 8 CMYK".

Link to screen shot "MagCloud-preset.jpg" (forum won't allow me to embed screen shots in posts):
https://drive.google.com/open?id=1sUCBBb30Bh-qaQPKOD0dkqT9U5YjKcXP 

With "MagCloud 8 x 8 CMYK" selected, now alter its color space and color profile. Change only those settings, to "RGB/8" and "sRGB," respectively.

The name changes at the upper right of the New Document dialog to "Custom."
Click the "+" button to create a preset by that name.
Change the name of new preset "Custom" to "MagCloud 8 x 8 RGB".
Create a document based on "MagCloud 8 x 8 RGB".

Unexpected result occurs — repeatable: In the new document, File > Spread Setup shows the preset as "MagCloud 8 x 8 CMYK" even though preset "MagCloud 8 x 8 RGB" was used to create that document.

Second test

Close new document and run File > New.
Select the "MagCloud 8 x 8 RGB" preset.
Change the page size to 8.01 x 8.01.
The name in the upper right of the dialog now changes to "Custom".
Leave the name that way and click "Create."

Expected result occurs — repeatable: In the new document, File > Spread Setup shows the preset as "Custom".

Third test

Close the new document and run File > New.
Select the new "Custom" preset and change the page size back to 8 inches x 8 inches, exactly.
The name in the upper right of the dialog remains "Custom".
Leave the name that way and click "Create".

Unexpected result occurs — repeatable: In the new document, File > Spread Setup now again shows the preset as "MagCloud 8 x 8 CMYK" — not "Custom".

Fourth test

Close new document and run File > New.
Select "MagCloud 8 x 8 RGB" preset.
Ensure the page size is still 8" x 8". Change the margin settings from 0.125 inch to 0.126 inch.
Preset name in the dialog changes to "Custom".
Create a new document based on "Custom".

Expected result occurs: In File > Spread Setup the preset name is shown as "Custom".

Fifth test

Close the new document and run File > New.
Select preset "Custom" and change its margin settings back to 0.125 inch. (Page size should still be 8" x 8".)
Leave the name "Custom" as-is and click "Create."

Unexpected result here — repeatable: In the new document, File > Spread Setup now again shows the preset as "MagCloud 8 x 8 CMYK" (not "Custom").