Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Description
Check for and handle adding duplicate PVs. If adding a list of PVs, any PV already on the plot will be skipped. Adding an individual PV from the lineEdit which is already on the plot will result in a duplicate curve for that PV plotted on a new axis.
Motivation
Users noticed unexpected behavior with duplicate PVs when adding from list:
[BUG] - if add PV from search window and the PV already exists, it's added again #220
Where Has This Been Documented?
Added docstring and comments to ControlPanel.add_curve explaining "duplicate" option