label whitespaces no more

[Igor]

Not sure if it's a bug or a new feature, but the whitespaces in my
labels are now turned into =000020

Steps to reproduce: Insert a new label with a name A B and look at
LaTeX Preview: \label{A=000020B}

Why? How to disable/enable this? What are actual, contemporary latex
rules or problems regarding whitespaces inside \label: should I stop
using whitespaces inside labels in latex too?! I was relying on this
mechanism to pass a more specific, meaningful display string to the
reference system.

(I'd submit it as a bug, but it seems my account has been removed,
although I did submit bugs in the past, eg.,
https://www.lyx.org/trac/ticket/12359
Could you re-enable it maybe?)

Version 2.4.1 (Monday, July 1, 2024)
Qt Version (run-time): 6.7.2 on platform windows
Qt Version (compile-time): 6.7.2
OS Version (run-time): Windows 11 Version 23H2

Thanks,