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Description of problem:
lvconvert should block to convert the thin LV to mirror since don't support to do this.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. create thin pool and LV
2. try to convert the thin LV to mirror
# lvconvert -m 1 vg/lv02
  LV lv02 is thin volume without first thin volume segment
  Internal error: LV segments corrupted in lv02.
  LV lv02_mimage_0 is missing thin volume flag for segment 1
  Internal error: LV segments corrupted in lv02_mimage_0.
3. see the lv02_mlog is created. 
# lvs
  LV             VG   Attr     LSize   Pool Origin         Data%  Move Log Copy%  Convert
  guest01        vg   Vwi-aotz   3.32g pool                102.58                        
  lv02           vg   Vwi-a-tz 100.00m pool                100.00                        
  lv02_mlog      vg   -wi-----   4.00m                                                   
  pool           vg   twi-a-tz  31.67g      
  
Actual results:


Expected results:


Additional info:

*** This bug has been marked as a duplicate of bug 855179 ***