Tag highlighting for an opening tag fails

### Describe the issue

On this string, the opening tag is correctly highlighted in the source string, but the highlighting fails in the translated string:

https://translations.documentfoundation.org/translate/libo_ui-master/readlicense_oodocs/fi/?checksum=230cf42401b5d241

The closing tag is correctly highlighted in for both source and translation.

### I already tried

- [X] I've read and searched [the documentation](https://docs.weblate.org/).
- [X] I've searched for similar filed issues in this repository.

### Steps to reproduce the behavior

See https://translations.documentfoundation.org/translate/libo_ui-master/readlicense_oodocs/fi/?checksum=230cf42401b5d241

### Expected behavior

_No response_

### Screenshots

_No response_

### Exception traceback

_No response_

### How do you run Weblate?

Other

### Weblate versions

_No response_

### Weblate deploy checks

_No response_

### Additional context

TDF Weblate 5.4.3