$ git clone -n https://src.fedoraproject.org/rpms/python-urllib3.git /var/lib/mock/f39-build-1590056-38243/root/chroot_tmpdir/scmroot/python-urllib3
Cloning into '/var/lib/mock/f39-build-1590056-38243/root/chroot_tmpdir/scmroot/python-urllib3'...
$ git fetch origin 90d9220cc3cd467ebd72ed20d89f6b546e652243:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-urllib3
 * [new ref]         90d9220cc3cd467ebd72ed20d89f6b546e652243 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90d9220 Update to 1.26.18.