title: on_message() and @bot.command issue
body: <p>When I have <code>on_message()</code> in my code, it stops every other <code>@bot.command</code> commands from working. I've tried to <code>await bot.process_commands(message)</code>, but that doesn't work either. Here is my code that I have:</p>
  
  <pre><code>@bot.event
  @commands.has_role("Owner")
  async def on_message(message):
      if message.content.startswith('/lockdown'):
          await bot.process_commands(message)
          embed = discord.Embed(title=":warning: Do you want to activate Lock Down?", description="Type 'confirm' to activate Lock Down mode", color=0xFFFF00)
          embed.add_field(name="\u200b", value="Lock Down mode is still in early development, expect some issues")
          channel = message.channel
          await bot.send_message(message.channel, embed=embed)
          msg = await bot.wait_for_message(author=message.author, content='confirm')
          embed = discord.Embed(title=":white_check_mark: Lock Down mode successfully activated", description="To deactivate type '/lockdownstop'", color=0x00ff00)
          embed.add_field(name="\u200b", value="Lock Down mode is still in early development, expect some issues")
          await bot.send_message(message.channel, embed=embed)
  </code></pre>