Good day. Found the following.

Geany: Geany 1.34.1, Russian_Russia.1251 Geany: GTK 2.24.32, GLib 2.58.1

**1.** Consider the following plain text:

``` 123

456

```

After 123 follow five empty lines, field 456 follows one empty line.

**2.** Open **Search/Find** **Search for**: `(?s)^(.*)\n(.*\1)` **Replace for**: `\2` [v] Use regular expressions [v] Use multi-line matching

**3**. Repeat pressed button "In document" while replace not stoped and get next text: ``` 123

456

```

**4.** Create a new empty file and paste the text from step 3

**5.** Repeat the procedure from steps 2 and 3. The line between 123 and 456 will be deleted. Can you tell me what is wrong?