[BUG] Two spaces in a row makes messages not send - version 1.1.5

[jr0dsgarage]

Describe the bug
When sending a message to chat, I found it sometimes didn't send. I was taught to double space after a period and it's so engrained that it took me 3 days to figure out why messages weren't sending.

Minecraft Info
Minecraft information:

• AdvancedChat version 1.5.4

To Reproduce
Steps to reproduce the behavior:

1. Type a word followed by two spaces followed by another word and press Enter

Expected behavior
message gets sent to chat

Actual behavior
Message doesn't send. It is still in the history, however, so I can hit 't' and then press UP and the message appears in the chat box.

[DarkKronicle]

Are there any errors in console?

[jr0dsgarage]

Nope, nothing. The message disappears.