Incorrect change of timestamp to file with same content

[perseas12]

$ rsync-sidekick --version
v1.5.0

Create this file structure:

1. file-1 has the same content and modification timestamp in the source and destination directories.
2. file-2 has different content and modification timestamp in the source and destination directories.
3. file-1 has the same content as file-2 in the source directory.

$ mkdir source destination
$ echo "a" > source/file-1
$ cp --archive source/file-1 destination/
$ echo "b" > destination/file-2
$ echo "a" > source/file-2
$ stat --format "%n  %y" source/* destination/*
source/file-1       18:30:26
source/file-2       18:30:39
destination/file-1  18:30:26
destination/file-2  18:30:35
$ cat source/file-1 source/file-2 destination/file-1 destination/file-2
a
a
a
b

rsync-sidekick incorrectly propagates the modification timestamp of source file-2 to destination file-1. Because of this, rsync copies file-1 from source to destination, because the timestamps are different:

$ rsync-sidekick source/ destination/
Found 1 actions that can save you 2 B of files transfer!
Applying sync actions at destination...
   1/1 propagate timestamp of "source/file-2" to "file-1":
done
$ rsync -av source/ destination/
./
file-1
file-2

rsync-sidekick must not do anything, so that rsync does not copy file-1:

$ mkdir source destination
$ echo "a" > source/file-1
$ cp --archive source/file-1 destination/
$ echo "b" > destination/file-2
$ echo "a" > source/file-2
$ rsync -av source/ destination/
./
file-2