Completion dialog is not updated when searching with ed_search_*_history #523

Steps to reproduce

1. Type aa=0
2. Enter
3. Type a
4. Type PgUp
5. You can search from history, but the completion dialog is not updated.

Expected behavior

As with the normal up/down keys, the completion dialog is updated.

irb_info

I used Reline HEAD (3aeea2a) and IRB HEAD (ruby/irb@52b7980).

irb(main):003:0> irb_info
=>
Ruby version: 3.3.0
IRB version: irb 1.6.3 (2023-03-06)
InputMethod: RelineInputMethod with Reline 0.3.2
.irbrc path: /Users/mi/.irbrc
RUBY_PLATFORM: x86_64-darwin21
East Asian Ambiguous Width: 1