$ git clone -n https://src.fedoraproject.org/rpms/pcmanfm.git /var/lib/mock/f40-build-2265735-54620/root/chroot_tmpdir/scmroot/pcmanfm
Cloning into '/var/lib/mock/f40-build-2265735-54620/root/chroot_tmpdir/scmroot/pcmanfm'...
$ git fetch origin b7ce983787a579453639547a39371381bfef2fae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pcmanfm
 * [new ref]         b7ce983787a579453639547a39371381bfef2fae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7ce983 Change -Wincompatible-pointer-types from error to warning