Extend hyphen named class name does not work

[AlexanderTserkovniy]

Hey guys,

Does not work next:

@import (reference) "utils"; // has .u-relative { position: relative; }

.aaa {
  &:extend(.u-relative);
}

But works well when there is not hyphen here u- like that:

@import (reference) "utils"; // has .urelative { position: relative; }

.aaa {
  &:extend(.urelative);
}

Expect:
.aaa { position: relative; }

Actual:
.aaa {} or does not exist at all.

Please extend this test, or similar with one letter before dash in :extend

P.S. Possibly the same problem as for #1328 here mentioned.

P.P.S. extend of .uu-relative works well.

[seven-phases-max]

I can't reproduce you results with recent Less versions (i.e. 2.5.x-2.6.x).

[AlexanderTserkovniy]

I have created small project for this:
https://github.com/AlexanderTserkovniy/less-hyphen-extend

To run please install less and run via bin folder b.less file.

[seven-phases-max]

See #2200 part 2. It has nothing to do with hyphen (see example).

[seven-phases-max]

Closing as duplicate of #2200.