[MC-69117] Unable to add a Team for the blockdata selector

well, not much to say - @p works fine, @p[team=team] works not,
didn't caused a bad log, just put a "}" on the sign.

works:

blockdata -903 61 1012
 {
   Text1:"",
   Text2:
   "{
      selector:@p,
      color:gold,
      italic:true
   }"}

works not:

blockdata -903 61 1012
 {
   Text1:"",
   Text2:
   "{
      selector:@p[team=Team_01],
      color:gold,
      italic:true
   }"}