I don't know it seems so weird to see it like that, fix login bug seems more like a todo than an action.
I could understand if it were in this format: Fixes login bug. Updates copyright year. Ignores log directory. Those seem so much more like actions than the other.
For example, think about the "fast-forwarding", "rewinding" and "replaying" that Git does. When you rebase, Git rewinds your divergent commits, fast-forwards the branch, and then replays your commits again. What happens when it replays those commits? Fix login bug. Update copyright year. Ignore log directory. Done!