Backspace deletes too much in erl (and iex) REPL

[patrickbucher]

Describe the bug

In both erl (and iex), when I press backspace, not only a single character is deleted, but an entire group of characters (e.g. a word).

To Reproduce

Enter some expression and press backspace.

Expected behavior

Only a single character to the left of the cursor should be deleted.

Affected versions

Erlang/OTP 26 [erts-14.1] [source] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:1] [jit:ns]

Eshell V14.1 (press Ctrl+G to abort, type help(). for help)

running on current Arch Linux

Additional context

Original question on StackOverflow, because I thought it was an Elixir issue.

[garazdawi]

I think this is a duplicate of #7749

[garazdawi]

Fixed in #7749