Deprecated: Implicit conversion from float to int loses precision

[retrovertigo]

Describe the bug
Running WordPress 6.4.3 this PHP warning comes up:

Deprecated: Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 208

To Reproduce

1. Run WordPress 6.4.3
2. Switch on WP_DEBUG and WP_DEBUG_DISPLAY
3. Load the site
4. See warning printed out

See ​https://github.com/LeoColomb/pomo/issues/16 for a screenshot.

[sabernhardt]

Line 208 is in MO::get_byteorder():

$magic_big = ( (int) - 569244523 ) & 0xFFFFFFFF;

[swissspidy]

In 6.5 we added a new i18n library which should not have the same issue, so I am inclined to close this as a wontfix.