Operating system: Linux-4.15.0-112-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: GeForce GTX 1050/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 435.21
Broken: version: 2.90.0, branch: master, commit date: 2020-08-31 11:26, hash: `rB0330d1af29c0`
Worked: (newest version of Blender that worked as expected)
**Short description of error**
If you start Blender, add an image texture (with an absolute path) to a material, then save that to the start up file, the path will be wrong and the image won't load when restarting Blender.
This seems to have to do with the save ops Relative Remap, because if you first save somewhere else with Relative Remap disabled, then save to the startup file it works.
So maybe `wm.save_homefile` shouldn't have Relative Remap enabled?
You can also reproduce this(or similar?) behavior when saving the attached blend file as the startup file.
**Exact steps for others to reproduce the error**
* start Blender
* add a material an image texture to some object
* save as the startup file and restart blender or create a new blend
* load the attached blend
* save that as your startup file