Numista has started adding Reference: KM to saved URLs

Some saved Numista search URLs which previous didn't specify a reference catalog now specify Reference: KM, destroying the search.

Some of the URLs were bookmarked previously, but some were URLs in open browser tabs that worked correctly a few days ago.

One example:

https://en.numista.com/catalogue/index.php?r=%2Fnew10%2F&ct=coin&im1=&im2=&tb=y&tc=y&tn=y&tp=y&tt=y&cat=y&ru=&ca=3&no=&v=&i=date&b=&ie=&u=&a=&dg=&m=&f=&t=&w=&mt=&g=&se=&d=&c=&wi=&sw=

(This is so old it still has ct=coin. Removing that doesn't make a difference.)

When I remove KM and search the new URL:

https://en.numista.com/catalogue/index.php?r=%2Fnew10%2F&st=all&cat=y&im1=&im2=&ru=&ie=&no=&v=&cu=&a=&dg=&i=date&b=&m=&f=&t=&t2=&w=&mt=&u=&g=&c=&wi=&sw=

The new URL is much shorter and the order of some of the parameters has changed.

 Same happened to me yesterday afternoon - I had a tab open with 

a search on it from previous evening. Then yesterday clicking the 

next page suddenly gave way less results - 

as included in the search was a KM box appearing. 

  All I did then was click the  x  on the KM box then refresh the 

page and it has been alright since. So just that one occasion. 

Yes, I can redo all my bookmarks, it's just a pain. But some people won't notice the issue with old URLs and will start getting wrong results and not realizing it.