Redstone components sometimes don't get updated properly

What I expected to happen:

When I powered a repeater cycle, and replaced a redstone dust, the power states of either side would swap repeatedly.

 

What actually happened:

When I powered a repeater cycle, and replaced a redstone dust, the power states swapped once, but then both sides remained powered.

 

Steps to reproduce (shown in the attached video):

1. Make a repeater cycle using repeater configured to the same tick count.
2. Break one of the redstone dust and replace it once the repeater it powered unpowers.
3. Notice that the repeater clock will very quickly stop working.