In translator mode, multiple replace rule which deletes the entirety of a subtitle's text causes a desync

[darnn]

Latest beta, but this doesn't appear to be new.
In the following situation:

If I apply the following multiple replace rule:

The result is this:

In reality, the contents of the original file are still:
1
00:00:01,000 --> 00:00:03,000
a

2
00:00:03,024 --> 00:00:05,024
b

But the contents of the translation file are now:
1
00:00:01,000 --> 00:00:03,000
EVENING