$ git clone -n https://git.cclinux.org/stage/rpms/thunderbird.git /var/lib/mock/dist-circle8-update-firefox-build-111996-69516/root/chroot_tmpdir/scmroot/thunderbird
Cloning into '/var/lib/mock/dist-circle8-update-firefox-build-111996-69516/root/chroot_tmpdir/scmroot/thunderbird'...
$ git fetch origin 69a254be754d9e7cba0fbef87c0a72d36804b8d8:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/thunderbird
 * [new ref]         69a254be754d9e7cba0fbef87c0a72d36804b8d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 69a254b import thunderbird-115.8.0-1.el8_9