CTRL-C on command line does not cancel current command

[Paul Kelaita]

Configuration Information [Automatically generated, do not change]:
Machine: i586
OS: linux-musl
Compiler: gcc
Compilation CFLAGS: -Os -fomit-frame-pointer -g -Wno-parentheses 
-Wno-format-security
uname output: Linux PuPadPro 3.2.0-ish iSH 1.0 (67) May  4 2020 00:20:06 i686 
Linux
Machine Type: i586-alpine-linux-musl

Bash Version: 5.0
Patch Level: 11
Release Status: release

Description:
        CTRL-C works fine for anything run in the shell, however, the behavior 
while typing a command is wrong. The CTRL-C is ignored, and once Enter is hit, 
it appears that the first character is taken off the beginning of the command 
typed, and the rest is echoed back.  For example, if I type the command 'date' 
on the command line, but then hit CTRL-C after the 'e', nothing happens. But 
after I hit Enter, I get the shell error: 'bash: ate: command not found'

Repeat-By:
        see description above

Fix:
        [Description of how to fix the problem.  If you don't know a
        fix for the problem, don't include this section.]