$ git clone -n https://src.fedoraproject.org/rpms/icecat.git /var/lib/mock/f41-build-845762-162786/root/chroot_tmpdir/scmroot/icecat
Cloning into '/var/lib/mock/f41-build-845762-162786/root/chroot_tmpdir/scmroot/icecat'...
$ git fetch origin 037bec18a559b84594c3939cac7737c6846d2faf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/icecat
 * [new ref]         037bec18a559b84594c3939cac7737c6846d2faf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 037bec1 Release 115.14.0