$ git clone -n http://git.inferitos.ru/rpms/thunderbird /var/lib/mock/inferit-8_9-updates-build-35438-72173/root/chroot_tmpdir/scmroot/thunderbird
Cloning into '/var/lib/mock/inferit-8_9-updates-build-35438-72173/root/chroot_tmpdir/scmroot/thunderbird'...
$ git fetch origin changed/i8/thunderbird-115.4.1-1.el8_8.inferit:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/thunderbird
 * [new tag]         changed/i8/thunderbird-115.4.1-1.el8_8.inferit -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 32296f8 Merge branch 'i8c' into with version 115.4.1-1 into i8