No webhook sent when there are other tags pushed

It looks like when there is more than one tag pushed at once, we don't get the webhook. This happened last night for org-make-toc/0.6-1, and I was able to make it happen just now for plz-el, like this:

git tag -am test test
GIT_CONFIG_COUNT=1 GIT_CONFIG_KEY_0=push.followTags GIT_CONFIG_VALUE_0=true \
git debpush

This is going to be a problem for https://bugs.debian.org/1111230 and https://bugs.debian.org/1111305.

(I would assume that pushing the upstream tag at the same time as the DEP-14 tag is enough to cause the problem, and creating the test tag is not actually needed. But for org-make-toc and plz-el I actually pushed the DEP-14 tag, upstream tag and test tag all together.)