Duplicate property definitions

Created by: ujovlado

Hi, I found two duplicate property set in exported CSS. I don't know if it's the purpose or there's problem with LESS to CSS conversion.

/* line 3483, padding */

.btn-group-xs > .btn {
  padding: 5px 10px;
  padding: 1px 5px;
  font-size: 12px;
  line-height: 1.5;
  border-radius: 3px;
}


/* line 4956, display */

.thumbnail {
  display: inline-block;
  display: block;
  height: auto;
  max-width: 100%;
  padding: 4px;
  line-height: 1.428571429;
  background-color: #ffffff;
  border: 1px solid #dddddd;
  border-radius: 4px;
  -webkit-transition: all 0.2s ease-in-out;
          transition: all 0.2s ease-in-out;
}

Thx