Hi,

I am encountering a very strange issue where hash keys are created by just being referenced in the condition statement of an if-statement. Dumper($hash_ref), returns the following:

$VAR1 = {                                  
          'block1' => {
                        'lib1' => {
                                    'cell_1' => 1,
                                    'cell_2' => 1,
                                  },
                      },
          'block2' => {
                        'lib1' => {
                                    'cell_3' => 1,
                                    'cell_4' => 1,
                                  },
                      },
        };
[download]

After running the following code where $block="block3" & $libName = "lib1" :

if(!defined $hash_ref->{$block}->{$libName}) {
             print "This is a test\n";
}
[download]

Dumper($hash_ref), returns the following:

$VAR1 = {
          'block1' => {
                        'lib1' => {
                                    'cell_1' => 1,
                                    'cell_2' => 1,
                                  },
                      },
          'block2' => {
                        'lib1' => {
                                    'cell_3' => 1,
                                    'cell_4' => 1,
                                  },
                      },
          'block3' => {},
        };
[download]

Any ideas why this is happening. The same script used to work ok, but it suddently stopped working. I have tried different perl installations but the issue persists!

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