A different pronunciation of "popular"

[palizland]

Dear teachers
Hi, I was checking the pronunciation of "popular" in Longman contemporary dictionary (the software), then I saw a different phonetic symbol why is that is it common?!. Please help me.
Thanks.

 

[bhaisahab]

No, it's not common. I've never seen it before.

 

[Tdol]

It looks like a mistake to me.

 

[palizland]

It's really a big surprise for me.

 

[Tdol]

Dictionaries are not perfect. I imagine that entry will be removed, though.