Brigadier tab-complete support seems flaky with complex commands

[dasavick]

Commands having multiple patterns only work for the single something of the seemingly random pattern:

• something <requiredValue> something1
• something <requiredValue> something2
• something <requiredValue> something3

Also, applicable for patterns with more arguments like:

• something <requiredValue> something1 <required1> [optional1]
• something <requiredValue> something2 <required1>

[dasavick]

Real-life example:

@Executor
public BukkitResponse assign(CommandSender sender, @Arg Player target, @Arg QuestMeta quest, @Arg Option<QuestMeta> requires) {
    //
}

@Executor(pattern = "assign @a * *")
public BukkitResponse assign_all(CommandSender sender, @Arg QuestMeta quest, @Arg QuestMeta requires) {
    //
}

[dasavick]