$ git clone -n https://src.fedoraproject.org/rpms/wxsvg.git /var/lib/mock/f39-build-1733265-41251/root/chroot_tmpdir/scmroot/wxsvg
Cloning into '/var/lib/mock/f39-build-1733265-41251/root/chroot_tmpdir/scmroot/wxsvg'...
$ git fetch origin 18bca382acbac2a9f2f07262804c426cf1ae75db:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wxsvg
 * [new ref]         18bca382acbac2a9f2f07262804c426cf1ae75db -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18bca38 unretire and update to current release