Section plane name connected with Model name

In v19 I used to export a section from a model and the name of the section stays the same in the 2d documentation. Although in v20 I export the section and it automatically adds the files name as a suffix.
for example section name is plan1, ande file name is file-v01.dwg .. the section name is plan1__file-v01.dwg.
Is there a place in settings to remove the connection with the file name. For the section exported to stay name plan1.
I'm used to create many versions of the file and whenever I export the section exported will not sit on the older section because the blocks name is defferent with the file's name.
I attached a photo explaining this.
Thanks in advance for your help