Colored end markers not shown in Stroke Style dialog after saving and reopening

[uellue]

Version Inkscape 0.91 r13725 Win7 64 bit

How to reproduce:
- Create a black straight line
- Give it an end marker, for example an arrowhead
- Duplicate this line and move it away from the original
- Give it a color
- Save file and close Inkscape (see attached file)
- Reopen the file again
- Open Stroke style dialog
- Select first the black line and then the colored line

Observed behavior:
- The Stroke style correctly shows the marker of the black line
- It does not show the marker of the colored line
- This only happens after saving, closing and reopening -- otherwise the display is fine

Expected behavior:
- The Stroke style dialog works the same before and after saving, closing and reopening.

This bug is not very severe because new markers can still be assigned. This is merely a nuisance.

[jazzynico (jazzynico)]

Reproduced on Windows XP, Inkscape 0.91 and trunk rev. 14023.
Not reproduced with 0.48.5.

[jazzynico (jazzynico)]

Not reproduced on Xubuntu 16.04, Inkscape 0.91 and trunk rev. 15095.

[jazzynico (jazzynico)]

Reproduced on Windows 7, lp:inkscape/0.92.x rev. 15067.

The bug only show if the Fill and stroke dialog is already open in Inkscape before the document is loaded.
To be tested again on Xubuntu.

[jazzynico (jazzynico)]

Reproduced on Xubuntu 16.04, Inkscape 0.91 and lp:inkscape rev. 15099 (with F&S already open before loading the document).