Pasting object with LPE into new document always uses same LPE
#### Steps to reproduce:
- open Inkscape
- create rectangle
- apply offset LPE (with offset of 10 mm) (also replicated with perspective/envelope)
- copy rectangle and paste into a new document
- go back to the first document
- change the offset to 20 mm
- copy rectangle and paste into a new document
#### What happened?
- although a separate lpe entry is created, it has the same properties as the original lpe (reason: when adding the new lpe, it copies the lpe with the same id in the new document, instead of the clipboard)
#### What should have happened?
- paste new object into document, not an older one
#### Workaround
- Rename the id of the lpe (and the link to the lpe) after pasting. Obviously not very usable
#### Version Info:
- 1.0 (4035a4f, 2020-05-01) Linux Mint 20
- Inkscape 1.1-dev (608fe7bbae, 2020-07-26) Linux Mint 20
Not replicated Inkscape 0.92.5 (3f0c6aa335, 2020-07-27) Linux Mint 20
Bisected to
commit inkscape@01bc8b4ab4f8791f040340c8359329cf757d2231
```
Author: Jabier Arraiza <jabier.arraiza@marker.es>
Date: Sun Jan 26 16:22:17 2020 +0100
Fix Pasting Path Effect : unexpected behavior https://gitlab.com/inkscape/in
kscape/issues/623
```
Search terms:
- Inbox: "copy" and "paste"
- Inkscape/inkscape: inbox~13099603 label
issue