This exact same issue was reported as BTS report #645544 and fixed in version 0.5.2-1. The fix was removed in version 0.6.0-1 with this comment:
* Stop setting HOME during regression tests: Fixed upstream. Did upstream forget why $HOME should be set? -- Happy hacking Petter Reinholdtsen -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org