A bug was introduced in #17704 which meant that subsequent
calls to enroll would unset the new _idleTimeout and the
enrolled object could never again function as a timer.
PR-URL: https://github.com/nodejs/node/pull/19936
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
