urls of articles changed in joomla 3.7.5

Hello,

I've upgraded Joomla 3.6.5 to 3.7.5 and noticed that urls from custom properties search has changed, e.g.:
from www.mrcutout.com/78-cutouts/people-cutou...r-woman-walking-0011
to www.mrcutout.com/site-map/articles/78-cu...r-woman-walking-0011

I made a redirection 301 as a temporary workaround but do you know the cause and how to go back to old urls?

Regards
Lukasz

As the urls seem to suggest, that must be the working of a "Site map" generator.
If there's any menu item (even an unpublished or a trashed one) pointing to a site map, try deleting it.
Then there won't be any reference to any site map any more and there won't be any url pointing to it.

It did work. Perfect support Andrea, as always!

Thank you,
Lukasz

Although, I still wonder why Joomla upgrade triggered this url change...