tree dbb5874ee80ea7248c987a3c0ddebfe7d4f28b45
parent ba4fbbefbb1596a6041b93509e11a1a49bbc855a
author Junxiao Shi <git@mail1.yoursunny.com> 1499267077 +0000
committer Junxiao Shi <git@mail1.yoursunny.com> 1499267077 +0000

ensure default-constructed Selectors is empty

refs #3944

Change-Id: Iaf5b6176529c4533214c4e27069734f8bdb7e556