$ git clone -n https://git.cclinux.org/stage/rpms/firefox.git /var/lib/mock/dist-circle8_6-updates-build-83490-26185/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-circle8_6-updates-build-83490-26185/root/chroot_tmpdir/scmroot/firefox'...
$ git reset --hard 207efc43a5b4309767983132f3494a67f4723c6e
HEAD is now at 207efc4 import firefox-91.13.0-1.el8_6