When two rules attempt a page redirect, which will actually happen?
try changing the order (weight) of each rule under its settings:

Weight

Order rules that react on the same event. Rules with a higher weight are evaluated after rules with less weight.

EDIT:
it's a little convoluted, but you could create a temporary variable within the node to control things - for example, a hidden boolean field or flag that is changed to true when editing - the rule checks for this as a Data Comparison in a condition. Have the change field and redirect Rule set the boolean but not redirect, then create two rules on save - one if the field is set, and one if the field is not. For the rule if the field is set, then add an action that resets the fields value.