Is it just me, or would this fix the problem simply: 1) If a postinst generates a configuration file with debconf, it must place the md5sum of the generated configuration file in /var 2) A package should try and parse the current configuration file back into debconf before prompting. 3) After prompting, the package must confirm that the current md5sum matches the one stored in /var. If it does and the package succeeded at (2) it may replace the configuration file. Otherwise, use ucf.
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