query YY9 / YY1 with same name

Hello,

After I did open a published query YY1_NAME1 in the app. Custom Queries, made some changes but did not save nor publish it, I noticed that it apparently created a YY9_NAME1 query. Is the YY9 query a technical creation, for the draft of the YY1 ? Will the YY9 query disapear if I save and publish YY1 again (after I modify it or not) ?

Kind regards,

YG