ident itemize regression

[Edwin Leuven]

suppose i have

* a
* b
* c

in lyx 2.0 if i select the lines with ‘b' and ‘c’ and hit <tab> they get 
indented once:

* a
  - b
  - c

in lyx 2.2 (perhaps 2.1 as well) however ‘c’ gets indented twice:

* a
  - b
    # c

ed.