Johannes Schindelin [off-list ref] writes:
quoted
Why? Most tags will be created once and will stay there. That is how
tags are supposed to behave, isn't it?
Exactly my point. In the common case, it does not change a thing.
Wrong.
In the common case, you will create tons of useless files that waste a
disk block to store 180-byte or so perr each tag.
However in the case that we _do_ change tags, would you not agree that the
reflog is _the_ place to record the change?
That merely means whoever changes the tag and wants the record of such an
update, which is uncommon, need to make sure reflog is created for that
tag (and that tag only).