After upgrade to 7.2.x AbilityBot.onRegister must be called manually or it will fail to accept messages

[chpasha]

Describe the bug
After upgrade to 7.2.x if I don't call AbilityBot.onRegister() method manually after bot creation, it will fail to receive any messages from API with following exception

Exception in thread "pool-2-thread-1" java.lang.NullPointerException: Cannot invoke "java.util.List.stream()" because "this.replies" is null
	at org.telegram.telegrambots.abilitybots.api.bot.BaseAbilityBot.filterReply(BaseAbilityBot.java:621)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:178)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179)
	at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596)
	at org.telegram.telegrambots.abilitybots.api.bot.BaseAbilityBot.consume(BaseAbilityBot.java:201)
	at org.telegram.telegrambots.abilitybots.api.bot.AbilityBot.consume(AbilityBot.java:37)

this.replies is indeed null until onRegister is called. So my question is, am I doing something wrong? Documentation says nothing about it and yet everything works fine only if I call this method manually. If it is an intention? If so, why it is not mentioned anywhere. And if it is an intention, it looks like a bad design choice, because some magic method on bot must be called additionally to its creation and registration in TelegramBotApplication

To Reproduce
Steps to reproduce the behavior:

implementation 'org.telegram:telegrambots-springboot-longpolling-starter:7.2.1'
implementation 'org.telegram:telegrambots-abilities:7.2.1'
implementation 'org.telegram:telegrambots-client:7.2.1'

class MyBot extends AbilityBot implements SpringLongPollingBot  {}

Expected behavior
Ideally, onRegister would be called automatically OR at least mentioned in the documentation and examples provided