rename property breaks return property in Run TestCase

reproduced with 4.5.2 as well

1 - create test "1"
2 - in test "1", create property "A"
3 - create test "2"
4 - in test "2", create Run test case step and point it to test "1" and mark "A" as return property
5 - in test "1", rename property "A" to "B"
6 - in test "2", open Run test step and check property. It will be "B" but return property will be unchecked.

--- can be reproduced every time