Duplicate marker definition at Paste

[Hans Dybkjær]

Make line, add end marker e.g. EmptyTriangleOutL, to make an arrow.
Copy and paste the arrow. Now both arrows correctly point to EmptyTriangleOutL, but a new copy of the EmptyTriangleOutL defintion has been made which is unused (Ctrl-Shift-X to view XML and see this). The new copy is removed with Vacum Definitions ("Ryd op i definitioner" in my Danish version), but it should not have been there in the first place.
Inkscape 0.48.1 r9760, Mac OS 10.6

[Alvin Penner (apenner)]

confirmed on Windows XP, Inkscape rev 10450.
The new marker is given an id = EmptyTriangleOutL-1, but it is not used

[Beluga (buovjaga)]

Not happening here. EmptyTriangleOutL-3 gets created and it is used, meaning that if I delete it, the marker from the pasted line disappears.
EmptyTriangleOutL-3 has as child path with the same id as the child path of EmptyTriangleOutL plus -6 at the end.

Arch Linux 64-bit, KDE Plasma 5
Inkscape 0.92pre1 15054 (GTK3)

[Nathan Lee (nathan.lee)]

Replicated in Inkscape 0.48.5 r10040 on Windows 10 but no longer an issue in 0.92.3 ppa Linux Mint 19.1 (also in 1.0 release (4035a4fb49) Windows 10). Now on copy and paste if a duplicate marker is created, it is referenced

Issues currently exist for extra markers being created in https://gitlab.com/inkscape/inbox/-/issues/2850 https://gitlab.com/inkscape/inbox/-/issues/2751 so safe to close