1 files changed, 11 insertions, 0 deletions

diff --git a/debian/taler-merchant.postrm b/debian/taler-merchant.postrm
index bf628b36..a9a7cc05 100644
--- a/debian/taler-merchant.postrm
+++ b/debian/taler-merchant.postrm
@@ -13,4 +13,15 @@ fi
 
 #DEBHELPER#
 
+# When purging this package after the selections in the preinst have been made,
+# the debconf database is left in an inconsistent state and the package cannot
+# be installed again.  This happens because dbconf-common will create a
+# template for these questions with a shared owner.  Purging will only delete
+# one of the two templates, leading to a DB state where debconf-set-selections
+# fails.  We work around this by manually fixing up the debconf database.
+# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=487300
+if [ -x /usr/share/debconf/fix_db.pl ]; then
+  /usr/share/debconf/fix_db.pl
+fi
+
 exit 0