Using dpatch requires you to explicitly list all patches you want to apply in debian/patches/00list. This package build-depends on dpatch, but does not provide a patch list. You should either remove the dpatch build dependency or add a patch list.
Note that an empty file cannot be represented in the Debian diff, so an empty patch list will disappear in the source package. If you intended for the series file to be empty, add a comment line.
The tag is present in Lintian version
That is the most recent version we know about.
We use semantic versions.
The patch number is a commit step indicator relative to the
release tag in our Git
You can find the detection logic for this version at commit f5107b6. For merge requests, please use the latest version in the Lintian check debian/patches/dpatch.