Bug #124878 for URI: path_segments regression in URI 1.64

Hello, I have noticed a change in behaviour in the path_segments method between URI versions 1.60 and 1.64. In 1.60, you can erase the path_segments array by passing undef. In 1.64 still works, but produces unitialised value warnings. Passing the null string instead works and does not trigger any warnings, but feels the wrong thing to do. Is undef the 'correct' way to do this? % perl -MURI -e 'print "Perl version $]\nURI version:$URI::VERSION\n"; URI->new("http://localhost")->path_segments(undef)' Perl version 5.020002 URI version:1.64 Use of uninitialized value $_ in substitution (s///) at /usr/share/perl5/URI/_generic.pm line 107. Use of uninitialized value $_ in substitution (s///) at /usr/share/perl5/URI/_generic.pm line 107. Use of uninitialized value $_ in substitution (s///) at /usr/share/perl5/URI/_generic.pm line 109. Use of uninitialized value $arg[0] in join or string at /usr/share/perl5/URI/_generic.pm line 111. But this is OK % perl -MURI -e 'print "Perl version $]\nURI version:$URI::VERSION\n"; URI->new("http://localhost")->path_segments("")' Perl version 5.020002 URI version:1.64 On another system I have both of these work without complaint: % perl -MURI -e 'print "Perl version $]\nURI version:$URI::VERSION\n"; URI->new("http://localhost")->path_segments(undef)' Perl version 5.014002 URI version:1.60 % perl -MURI -e 'print "Perl version $]\nURI version:$URI::VERSION\n"; URI->new("http://localhost")->path_segments("")' Perl version 5.014002 URI version:1.60 Let me know if you need anything else Mark