If you highlight text over 255 characters long and open the "Hyperlink" dialogue (either via Insert->Hyperlink or ctrl-k), then the text in the "Text:" field is cut to the first 255 characters. Adding a URL and hitting "OK" will then cut the text in the document to just these 255 characters.
Steps to Reproduce:
1. Select text over 255 characters.
2. Open "Hyperlink" dialogue.
3. Add a URL to the "URL:" box.
4. Hit "OK." Text is trimmed to 255 characters in the document (and hyperlinked).
Text is trimmed to 255 characters in the document (and hyperlinked).
Text should be hyperlinked, and not trimmed.
User Profile Reset: Yes
Manifests in Linux 6.4-alpha from git master, built today: 725b51044b955946c6528ca08a8a36dc44f09cd8
Also manifests in Windows 6.4-alpha in daily build d744838991594eebe27acc4c7d9fb4579d654853 from 2019-09-29_05:12:00
Testing an old version, it showed up in Windows 6.4-alpha in daily build 12748b06cbdefd67725009520e4c27bd82cab60f from 2019-07-02_13:41:00
This looks like an old one - I found it in 6.2.7 for Windows and 6.3.1 for Windows, the current download versions.
And in fact, I tested LO 3.3.0 from 2011 ... and the bug as described works there too! The text field cuts off the text at 255 characters.
I discovered this in the course of just using LO for writing - one accepted way to reference tweets from Twitter is to quote the entire tweet as the title of the work, and hyperlink that title. And now tweets can go up to 280 characters.
I can work around the bug, but it's fiddly and prone to breakage if I open the Hyperlink dialogue again ...
Confirmed in Ubuntu 19.4 x64
To be precise - it seems to trim the text when it's being read into the Hyperlink dialogue. If you select text that's over 255 characters long, and open Hyperlink, the text in the Text field will be cut off at 255 characters - and if you hit "OK", then that cut-off text is what will be saved.
You can make the text in the Text field longer than 255 characters, and if you hit "OK" then the extra characters are saved. So the 255-character cutoff seems to be in the process of reading the selected text into the Hyperlink box.
For comparison, Google Docs doesn't suffer this limitation.
In further tests: if I have the Hyperlink dialogue already open, the "Text" field can take up to 65,534 characters (2^16-2). When I hit "OK", these are put into the document correctly.
So I would guess that all this needs to fix it is for whatever takes the selection from the document reading 16 bits of characters from the selection, instead of 8 bits.
Exacly, if the text is already selected just 255, if I insert the text ather the hyperlink dialog opened is ok.
Build ID: dcf040e67528d9187c66b2379df5ea4407429775
CPU threads: 4; OS: Linux 5.4; UI render: default; VCL: gtk3
Locale: ro-RO (ro_RO.UTF-8); UI: en-US
*** This bug has been marked as a duplicate of bug 101463 ***