Making a change to an old version

The version trees show three branches, one named main under the heading Modified with versions 0 through 3, another named main under the heading Not modified with versions 0 through 4, and one named r1_fix off version 1 of the Modified main branch with versions 0 through 2. Version 1 on the Not modified main branch has the label R1.0 attached. Version 2 on the r1_fix branch is marked Created by Rule 2. Version 1 under both main branches is marked Selected by Rule 3.