Created attachment 98424 [details]
ODS document with a simple X-Y scatter chart

Problem description:

The x/y-Axis Major interval value changes back to 100 when a number greater than 100 was entered previously.

Steps to reproduce:
1. Open attached ods document
2. Open the y-Axis formatting window of the chart
3. Change the Major interval value to 250
4. Click the OK button
5. Open the y-Axis formatting window again

Current behavior:
After step 2, notice that the value for Major interval is 100, but the chart shows 500.
After step 4, notice that y-Axis of the chart shows an interval of 250.
After step 5, notice that the value for Major interval is 100, but the chart shows 250.

Expected behavior:
After step 2, the value for Major interval should be 500.
After step 5, the value for Major interval should be 250.
Operating System: Windows 8
Version: 4.2.2.1 release