$ git clone -n https://src.fedoraproject.org/rpms/icewm.git /var/lib/mock/f42-build-side-1-3502112-45977/root/chroot_tmpdir/scmroot/icewm
Cloning into '/var/lib/mock/f42-build-side-1-3502112-45977/root/chroot_tmpdir/scmroot/icewm'...
$ git fetch origin fb089dd3e52c3091a64e690442a3cceb77cdbd30:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/icewm
 * [new ref]         fb089dd3e52c3091a64e690442a3cceb77cdbd30 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fb089dd Update to 3.7.3 upstream release