Clicking 'Accept' erases target list table

[astronomerdave]

Steps to repeat this:

1. File > New Target List
2. Enter a target name
3. Right-click, Insert
4. Enter another target name
5. Repeat 3,4 as desired, or not, editing any fields such as requested exp time
6. Click Accept
7. Enter label for the target list in the dialog, click OK
8. The OTM predicted timeline is displayed and the displayed target list is empty.