$ git clone -n http://git.inferitos.ru/rpms/thunderbird /var/lib/mock/inferit-8_10-updates-build-66421-140811/root/chroot_tmpdir/scmroot/thunderbird
Cloning into '/var/lib/mock/inferit-8_10-updates-build-66421-140811/root/chroot_tmpdir/scmroot/thunderbird'...
$ git fetch origin changed/i8/thunderbird-128.4.0-1.el8_10.inferit:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/thunderbird
 * [new tag]         changed/i8/thunderbird-128.4.0-1.el8_10.inferit -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 10b00ef Update cbindgen-vendor.tar.xz to 0.26.0