Custom project CRS is not restored correctly on project load

[qgib]

Author Name: Anita Graser (@anitagraser)
Original Redmine Issue: 17257
Affected QGIS version: master
Redmine category:project_loading/saving
Assignee: Nyall Dawson

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I have a project with a custom CRS used as the project CRS. (Specifically: +proj=ortho +lat_0=42.1 +lon_0=12.8 +x_0=0 +y_0=0 +a=6371000 +b=6371000 +units=m +no_defs) It was created with 2.14.

When I open the 2.14 project in master, a different CRS is assigned. Could be the one with the same random generated ID that custom CRS get.

If I save the project using master and reopen it, the correct CRS id is displayed in the project properties but the map is not rendered correctly either. I have to change the CRS to another and then back to make it look correct.

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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• assigned_to_id was configured as Nyall Dawson

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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Applied in changeset f2b5a59.

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• done_ratio was changed from 0 to 100
• status_id was changed from Open to Closed