SSMS Find and Replace "Look In" values change without user input
RE. Find and Replace "Look In" drop-down:
* Default to "Current Document"
* Retain selected option until dialog is closed & reopened -- do not change "Look In" without user input.
In both SSMS 17.9.1 (14.0.17289.0) and 18.2 (15.0.18142.0), the Find and Replace dialog defaults "Look in:" to "All Open Documents". I would suggest the default should be "Current Document" (which I believe was the default in older versions)
Much more dangerously, even after changing the default to another option, "Look In" reverts to "All Open Documents", which can cause unintended, undesirable, & unknown changes to other open documents, which can be disastrous if scripts are executed with those unknown changes.