Comment # 1 on bug 1200138 from WEI GAO

If you choice 2, after zdup finished, the version still show 15.3
Choose from above solutions by number or cancel [1/2/3/c/d/?] (c): 2
Resolving dependencies...
Computing distribution upgrade...

The following item is locked and will not be changed by any action:
 Installed:
  yast2-theme
Nothing to do.
openqa-migration-qe1-1:~ # cat /etc/os-release 
NAME="openSUSE Leap"
VERSION="15.3"
ID="opensuse-leap"
ID_LIKE="suse opensuse"
VERSION_ID="15.3"
PRETTY_NAME="openSUSE Leap 15.3"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:opensuse:leap:15.3"
BUG_REPORT_URL="https://bugs.opensuse.org"
HOME_URL="https://www.opensuse.org/"