Teststep silently removed

Composite project, residing in svn, worked on by a team of users.
Testing of REST services.

User A, changes base path of service, which immediately updates basepaths of derived entities, used in teststeps, in his local machine.
User A, checks in ONLY the basepath change.

User B, updates from svn, and gets the base path change of the service.
SoapUIPro, v4.5.0 and 4.5.1, SILENTLY, without notifying the user, removes any teststeps depending on the changed service, which have a mismatching basepath.
Test still run green , since testssteps are removed.

Details:
soapUI Pro 4.5.0, Build [internal], Build Date 2012/03/26 16:19
soapUI Pro, 4.5.1
---
Step1 (start, both users have same data):
UserA:
Service:Basepath: /abc/if2
REST teststep:Resource: /abc/if2

UserB:
Service:Basepath: /abc/if2
REST teststep:Resource: /abc/if2
---
Step2 (local change by userA):
UserA:
Service:Basepath: /xyz/if2
REST teststep:Resource: /xyz/if2

UserB:
Service:Basepath: /abc/if2
REST teststep:Resource: /abc/if2
---
Step2 (after userA checkin, and userB update):
UserA:
Service:Basepath: /xyz/if2
REST teststep:Resource: /xyz/if2

UserB:
Service:Basepath: /xyz/if2
REST teststep silently removed !
---