The word being found is highlighted after it is modified

[NaNAGISaSA]

You could reproduce the bug in the following process:

1. Press the word which is to be found, such as example;
2. Press ctrl + F, input the word example and click Find all;
3. modify the word, for example, delete the character ple, or input some other characters, for example, qwer;
4. in both cases above, the region highlighted are wrong, the word being highlighted will be exam or exampleqwer, as below:

[Dmitriy Manushin]

Fixed.