The call to plugin_helpers.reset() is redundant with the clear() call
above it. Probably just a copy-paste mistake.
Avoids exit_event race #8813.
Helped-by: Björn Linse <bjorn.linse@gmail.com>
Lua (not LuaJIT) complains about the "^[[" strings inside the expect,
since it sees them as nested quotes. Change the quoting to [=[ ]=] to
avoid the issue.