[gdal-dev] "tolerance condition error" on reprojecting natural earth data to webmercator (3857)

[Adam Akhtar]

Hi,

I'm getting a "tolerance condition error" when trying to reproject Natural
Earth data into webmercator 3857 using ogr2ogr.

These are the commands I am running

```
wget https://naturalearth.s3.amazonaws.com/10m_physical/ne_10m_ocean.zip
unzip ne_10m_ocean.zip

// reproject the unzipped shape file
OGR_ENABLE_PARTIAL_REPROJECTION=true ogr2ogr -unsetFieldWidth -t_srs
EPSG:3857 -nlt PROMOTE_TO_MULTI -f PostgreSQL PG:"dbname='ogr'
host='localhost' port='5432' user='myusername password='redacted'"
ne_10m_ocean.shp
```

This results in the following output

```
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: tolerance condition error
ERROR 1: Reprojection failed, err = -20, further errors will be suppressed
on the transform object.
```

I'm sure this used to run fine a few months ago so I'm not sure why it is
suddenly breaking.

This happens on both my arm Mac and my Intel server instance.

Server instance:
EC2 M5 Intel with Ubuntu 20.04.3 LTS
GDAL 3.3.2, released 2021/09/01

Mac
M1 Arm Mac Big Sur 11.6
GDAL 3.3.3, released 2021/10/25

Is this or a bug or am I incorrectly using the command? Any help will be
greatly appreciated.

Adam
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