Fix timeline drawer for gates without unitary in target (backport #15421) #15422
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The timeline drawer was storing the unitary of a gate from the target in the metadata collected around drawing properties for some reason. This field was never used by anything but was in the metadata dictionary used for visualization. However, if there is a gate without a unitary in the target (such as a parameterized gate like RGate(theta, phi) which has a duration then this would error. Since we don't use the unitary for anything there is no reason to collect. This commit fixes the issue by removing the unitary from this internal metadata dictionary. (cherry picked from commit 9ef5a83)
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Changelog: Bugfix
jakelishman
approved these changes
Dec 5, 2025
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Summary
The timeline drawer was storing the unitary of a gate from the target in the metadata collected around drawing properties for some reason. This field was never used by anything but was in the metadata dictionary used for visualization. However, if there is a gate without a unitary in the target (such as a parameterized gate like
RGate(theta, phi)which has a duration then this would error. Since we don't use the unitary for anything there is no reason to collect. This commit fixes the issue by removing the unitary from this internal metadata dictionary.Details and comments
This is an automatic backport of pull request #15421 done by [Mergify](https://mergify.com).