Unable to handle a command within citation

[shizzard]

[2019-07-31T11:29:59.444891+00:00][error][marvin_helper_chain:chain/3:57@<0.12963.20>][01056c26-74c1-49f9-9c40-5162c8c7c1aa][NONE] what=error text="Chain dropped function execution with error" result=NONE details_reason="{2,marvin_guild_command_parser,[\"syntax error before: \",\"mention_end\"]}" details_fun=3 details_chain=marvin_guild_helper_message:handle_possible_command
[2019-07-31T11:29:59.445543+00:00][error][marvin_guild_helper_message:handle_possible_command/2:85@<0.12963.20>][3bc859b2-3174-4b3c-986a-52a95f8175f7][NONE] what=handle_possible_command text="Guild handle_possible_command failure" result=failure details_original_message=<<60,64,33,51,52,49,53,48,48,49,55,50,53,49,53,50,55,56,56,53,57,62,32,10,62,32,209,129,208,191,209,128,208,176,208,178,208,186,208,176>> details_guild_id=269209661973069825 details_error="{2,marvin_guild_command_parser,[\"syntax error before: \",\"mention_end\"]}"