Followup-For: Bug #1051797 Control: found -1 1:1.4.15+dfsg-2 Removing the readme from the -doc package is not sufficient, you also need to add
Breaks+Replaces: libtk-img-doc (<< 1:1.4.15+dfsg-2) to libtk-img in order to properly take over the file on upgrades from 1:1.4.15+dfsg-1 or before. Andreas