ROS groovy update screwed up workspace setup in some cases?

edit

After updating ROS groovy from .debs today, the following happens with our software setup:

Source groovy setup:

source /opt/ros/groovy/setup.bash

Output of "env | grep ROS":

ROS_ROOT=/opt/ros/groovy/share/ros
ROS_PACKAGE_PATH=/opt/ros/groovy/share:/opt/ros/groovy/stacks
ROS_MASTER_URI=http://localhost:11311
ROS_TEST_RESULTS_DIR=/home/kohlbrecher/flor_repo/catkin_ws/build/test_results
ROSLISP_PACKAGE_DIRECTORIES=
ROS_DISTRO=groovy
ROS_ETC_DIR=/opt/ros/groovy/etc/ros

sourcing a previously working setup.bash of a rosbuild workspace:

source setup.bash

results in the following output:

kohlbrecher@sk-i7:~/flor_repo/rosbuild_ws$ source setup.bash
bash: /share/rosbash/rosbash: No such file or directory
[rospack] Warning: ROS_ROOT=/share/ros is not a directory

Output of "env | grep ROS":

ROS_ROOT=/share/ros
ROS_PACKAGE_PATH=[OMITTED FOR BREVITY]
ROS_MASTER_URI=http://localhost:11311
ROS_WORKSPACE=/home/kohlbrecher/flor_repo/rosbuild_ws
ROS_TEST_RESULTS_DIR=/home/kohlbrecher/flor_repo/catkin_ws/build/test_results
ROSLISP_PACKAGE_DIRECTORIES=/home/kohlbrecher/flor_repo/catkin_ws/devel/share/common-lisp
ROS_DISTRO=groovy
ROS_ETC_DIR=/etc/ros

Any ideas what´s going on here? The rosbuild workspace is depending on a catkin workspace. I´ll try reinstalling our setup from scratch next, to see if that solves the problem.

/edit: Tried installing from scratch using our install scripts and these also do not work anymore.

/edit: Related Q/A here