The situation.
- I inherited a SharePoint Portal with an 'Issues' list which was being used to add new work items using the IT Bug Content Type.
- Users asked for some additional fields for the NewForm.aspx.
- I added additional fields to the IT Bug Content Type (List Content Type).
- I opened the NewForm.aspx page using SharePoint designer.
- I saved the NewForm.aspx as NewForm_mod01.aspx
- I made my changes to NewForm_mod01.aspx (adding new fields)
At this stage I thought I was being pretty safe making changes to a copy of the live NewForm.aspx, so you can imagine my horror when I discovered that the live site was making use of my modified form 'NewForm_mod01.aspx' when 'New Item' button was clicked on the main list form.
I found that by deleting my modified form I could get the site to go back to using the default form 'NewForm.aspx'.
I disocovered the List -> properties -> supporting files menu but found that when I changed these values to the default forms 'NewForm.aspx' it continued to use the modified form 'NewForm_mod01.aspx'.
My modified pages are working with the new fields now, but I still am very worried in that I don't understand the mechanism by which these new pages 'went live' in the first place.
Any insight would be greatly appreciated.