Fallback being called after adding bot to Skype

[xippios]

Original Issue: botman/botman#969

• BotMan Version: 2.4.1
• PHP Version: 7.3.1
• Messaging Service(s): BotFramework (Skype), Version 1.1.1
• Cache Driver: file

Description:

When adding my Skype Bot, the defined ´fallback´ function is being called.

Steps To Reproduce:

Add to ´routes/botman.php´.
´´´
$botman->fallback(function ($bot) {
$bot->reply('Sorry, but I did't understand you.');
});
´´´
Add your Skype Bot in Skype.