perl-Mail-Box-3.010-1.fc40 fails to build in Fedora 40 because a test fails:

t/504parser-bodyd.t ...... ok
#   Failed test '1 lines 0'
#   at t/505parser-bodymp.t line 68.
#          got: 22
#     expected: 21
#   Failed test '1 lines 1'
#   at t/505parser-bodymp.t line 68.
#          got: 83
#     expected: 82
#   Failed test '1 lines 2'
#   at t/505parser-bodymp.t line 68.
#          got: 35
#     expected: 34
# Looks like you failed 3 tests of 313.
t/505parser-bodymp.t ..... 
Dubious, test returned 3 (wstat 768, 0x300)
Failed 3/313 subtests 

This is triggered by upgrading perl-Mail-Message from 3.013-2.fc39 to 3.014-1.fc40.