Using the irb:rdbg console corrupts irb_history by duplicating entries

[joe-sharp]

Your environment

• ruby -v: 3.2.2 (and 3.0.6p216)
• rdbg -v: 1.9.1
• irb -v: 1.11.1

Describe the bug
Ruby history doesn't remember history when using irb:rdbg as reported in ruby/debug#1054 but additionally it seems to duplicate things going into the history. After a couple hundred or so commands the history file can have millions of lines. It appears that irb:rdbg is putting the entire session history into the file for each line typed.
To Reproduce
I entered irb:rdbg and ran some commands. The history file already has more entries than it should, while also exhibiting the behavior described in ruby/debug#1054 . Finally returning to vanilla IRB I can see my history is back (with repeated commands).

Shell Session:

$ rm ~/.config/irb/irb_history
$ rdbg -c pry
[4, 13] in ~/.asdf/installs/ruby/3.2.2/bin/pry
     4| #
     5| # The application 'pry' is installed as part of a gem, and
     6| # this file is here to facilitate running it.
     7| #
     8|
=>   9| require 'rubygems'
    10|
    11| Gem.use_gemdeps
    12|
    13| version = ">= 0.a"
=>#0	<main> at ~/.asdf/installs/ruby/3.2.2/bin/pry:9
irb:rdbg(main):002> "this will appear four times"
"this will appear four times"
irb:rdbg(main):003> "this will appear three times"
"this will appear three times"
irb:rdbg(main):004> "this will appear two times"
"this will appear two times"
irb:rdbg(main):005> hist
3: hist
2: "this will appear two times"
1: "this will appear three times"
0: "this will appear four times"
=> nil
irb:rdbg(main):006>
[1] pry(main)>

$ wc -l ~/.config/irb/irb_history
      10 /Users/joesharp/.config/irb/irb_history
$ bat ~/.config/irb/irb_history
───────┬──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
       │ File: /Users/joesharp/.config/irb/irb_history
───────┼──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
   1   │ "this will appear four times"
   2   │ "this will appear four times"
   3   │ "this will appear three times"
   4   │ "this will appear four times"
   5   │ "this will appear three times"
   6   │ "this will appear two times"
   7   │ "this will appear four times"
   8   │ "this will appear three times"
   9   │ "this will appear two times"
  10   │ hist

Expected behavior
I expect that the history file would only see each command once. Instead it appears to save the new command along with the entire previous history.

Additional context
Just for fun I noticed this issue when my performance got so bad that I couldn't get an IRB prompt anymore, when I checked the line count it was over 24 million!!! I have had this gem installed for only a few days!

~/dev/bundle-all 🔮❯❯❯ wc -l ~/.config/irb/irb_history.corrupt
 24059398 /Users/joesharp/.config/irb/irb_history.corrupt

[st0012]

Sorry for the trouble. I've identified the cause and will open a PR this week.