rtlcss is not working when there is a ignore comment `/*rtl:ignore*/` on an empty selector

[kongweian1]

Problem

ignore comment /*rtl:ignore*/ on an empty selector (.first-selector), then everything is broken.

example code

/* rtl:ignore */
.first-selector {
}

.second-selector {
  padding-right: 6%;
}

.third-selector {
  padding-right: 6%;
}

.fourth-selector {
  padding-right: 6%;
}

try it in playground

fail case