[xwiki-users] automatic numbering of page headings does not work always

hi, i have a really strange problem with the automatic numbering of xwiki headings. i have two user: the admin user and a personal one for editing. when i save the page below i see that the headings have a numbering. when i view the page with my second user i see the numbering as well. but when i edit and save this page with my second user - without changing anything - the numbering disappears. is the numbering of heading somehow related to user rights? using xwiki-1.1.1.5166 g, kirs page: 1 Brainstorming #toc("" "" "true") 1.1 User Interface 1.1.1 User Interface Concept 1. item 1 1. item 2 1. item 3 1.1.1.1 Menue text 1.1.1.1 Context ....