Fail to drop offline table if the HDFS path is changed

The issue shows a screenshot but no text description of the problem or steps to reproduce. Need to examine the screenshot for error details, locate the code handling HDFS path changes and table drop operations in the OpenMLDB codebase. Determine what 'offline table' means in this context and how HDFS path changes affect the drop operation. Check for existing tests related to table dropping and HDFS integration.

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