wipe_data.sh script is referring to non existing path

When Kea is installed from packages (rpm/deb) wipe script is trying to use admin-utils.sh from non existing path:

12:53:08  |forge-client-v4 10:53:06.783191| [172.28.0.31] run: bash /usr/share/kea/scripts/mysql/wipe_data.sh  `mysql -ukeauser -pkeapass keadb -N -B   -e "SELECT CONCAT_WS('.', version, minor) FROM schema_version;" 2>/dev/null` -N -B -ukeauser -pkeapass keadb
12:53:08  |forge-client-v4 10:53:06.832385| [172.28.0.31] out: /usr/share/kea/scripts/mysql/wipe_data.sh: line 31: /home/fedora/rpm-root/BUILD/kea-2.3.0/src/bin/admin/admin-utils.sh: No such file or directory

In package we can't refer to @abs_top_builddir@ at any point :(

# Include utilities. Use installed version if available and
# use build version if it isn't.
if [ -e "@abs_top_srcdir@/src/bin/admin/admin-utils.sh" ]; then
    . "@abs_top_srcdir@/src/bin/admin/admin-utils.sh"
else
    . "@abs_top_builddir@/src/bin/admin/admin-utils.sh"
fi

• this is completely trashing our pkg system test
• probably the same problem is with /usr/share/kea/scripts/pgsql/wipe_data.sh
• I would point #2071 (closed) as cause of this problem