Recently I bumped into it again with one of the more current Delphi XE* versions and Delphi 2007: the IDE changing the DFM files without reason.

This time it was in a multi-team environment with many branches and DFM merge hell.

A few examples of properties and components getting changes:

Warren P suggests to review your DFM changes before committing to version control and I completely agree: it is the only way to ensure they are indeed unwanted changes.

There are some stop-gab things you could try, but these only partially help

–jeroen

via: