Use bot mention (example: "@bot_name") as default prefix

[DiSonDS]

Now when bot only has access to messages with mentions (example: "@bot_name") it's also necessary to use prefix. In this case to execute command user should write something like:

• @bot_name prefix command_name ("@bot_name / echo")
• @bot_name prefixcommand_name ("@bot_name /echo")

VK Docs

Expected Behavior

"@bot_name echo" should work "@bot_name, echo" should work too (mobile clients add a comma by default)

Actual Behavior

"@bot_name echo" and "@bot_name, echo" don't works (only "@bot_name / echo" or "@bot_name /echo")

Possible Solution

—

Context

Users try to execute the bot command with a mention, but they do not expect that you also need to specify the prefix