Add test for --deselect without "::()"
Add test for --deselect without "::()"

Closes: https://github.com/pytest-dev/pytest/issues/4127.

pytest-dev/pytest,markshao/pytest,txomon/pytest,alfredodeza/pytest,tomviner/pytest,tomviner/pytest,Akasurde/pytest,RonnyPfannschmidt/pytest,The-Compiler/pytest,nicoddemus/pytest,hackebrot/pytest,nicoddemus/pytest,The-Compiler/pytest