Inconsistent convertedRoot / nodes

[guivr]

Current Behavior

When converting:

.a:first-child {
  flex: 1 1 0%;
}

.a {
  font-family: Inter;
}

The nodes found in result.convertedRoot are different than when converting:

.a {
  font-family: Inter;
}

.a:first-child {
  flex: 1 1 0%;
}

The order seems to matter and it loses all the styles related to :first-child

It would also be nice to have an explanation on the docs about what's the difference between convertedRoot and nodes as they sometime differ.