1.5-dev: Inkscape does not advertise most formats on the clipboard on Windows

<!--See our full bug reporting guidelines at https://inkscape.org/contribute/report-bugs/ Writing a good bug report will ensure we'll be able to help efficiently. 🙂--> #### Summary: <!--Summarize the issue/suggestion concisely:--> Copy and pasting objects (like text, paths with tip arrows) breaks the object down into its components, and they are converted into paths. For example, the text "asd" after pasting becomes 3 separate objects, "a", "s" and "d". A path with an arrow becomes the path and the arrow tip separately. Copy-pasting a rectangle with a gradient fill makes the same shape with a flat color. Does not happen when duplicating or cloning the objects. #### Steps to reproduce: <!--Describe what you did (step-by-step) so we can reproduce:--> - open Inkscape - select "Text Tool" - click somewhere on the page - type some text (e.g., "asd") - use escape to exit text edit mode - select the text - copy - paste #### What happened? The pasted text was split into separate objects for each letter: "a", "s" and "d". Also, the letters become paths. #### What should have happened? The paste object should be the same as the original. The text should remain text and not become multiple paths Sample attachments: {width="425" height="600"} {width="453" height="600"} <!--Attach the sample file(s) highlighting the issue, if appropriate.--> #### Version info <!--Open 'Help > About' and click on the little bug icon in the bottom right corner that copies the debug information to your clipboard. For command line users, run 'inkscape --debug-info'. For Inkscape 1.0.2 and older, please manually add the Inkscape Version and Operating System Version. The Inkscape version is listed in the About dialog. For command line users, run 'inkscape -V' Paste the information in the empty space between the apostrophes below:--> ``` Inkscape 1.5-dev (8754ac5, 2026-03-16, custom) Compile (Run) GLib version: 2.86.3 GTK version: 4.20.3 (4.20.3) glibmm version: 2.86.0 gtkmm version: 4.20.0 libxml2 version: 2.15.1 libxslt version: 1.1.45 Cairo version: 1.18.4 (1.18.4) Pango version: 1.56.4 (1.56.4) HarfBuzz version: 12.3.0 (12.3.0) Poppler version: 25.12.0 OS version: Windows 11 25H2 ``` <!--❤️ Thank you for filling in a new bug report, we appreciate the help! ❤️ Please be patient while we try to find the time to look into your issue. Remember that Inkscape is developed by volunteers in their spare time, we'll try our best to respond to all reports.--> <!--Please be careful when/after writing # for example in logs, code, or versions of linux - use inline code span - single backticks (`) before and after it, like this - `#1618` - use multi-line code block - triple backticks (```) to fence/enclose console logs - attach long logs as a text file.-->

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