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Ubuntu simple avoid bash history by extra space at the command beginning

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I randomly found that with extra space at the beginning of command, bash shell do not record its history.

nickfarrow:dev$ echo "Test history" #space at beginning

Test history

nickfarrow:dev$  echo "test history #2"

test history #2

nickfarrow:dev$   echo "test history #3"

test history #3

$ history

=> only show first command without extra space

2215  echo "Test history"

And when use UP key ↑, it only show command without extra space.

I am using Ubuntu 18 (VirtualBox)

nickfarrow:dev$ uname -a

Linux nickfarrow-VirtualBox 5.4.0-120-generic #136~18.04.1-Ubuntu SMP Fri Jun 10 18:00:44 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

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