$ git clone -n https://git.cclinux.org/stage/rpms/thunderbird.git /var/lib/mock/dist-circle8-update-firefox-build-114768-77463/root/chroot_tmpdir/scmroot/thunderbird
Cloning into '/var/lib/mock/dist-circle8-update-firefox-build-114768-77463/root/chroot_tmpdir/scmroot/thunderbird'...
$ git fetch origin 74cc175a851da39d81b4835e3456a249a8302bee:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/thunderbird
 * [new ref]         74cc175a851da39d81b4835e3456a249a8302bee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 74cc175 import thunderbird-115.11.0-1.el8_10