$ git clone -n https://src.fedoraproject.org/rpms/simarrange.git /var/lib/mock/f40-build-2440246-60981/root/chroot_tmpdir/scmroot/simarrange
Cloning into '/var/lib/mock/f40-build-2440246-60981/root/chroot_tmpdir/scmroot/simarrange'...
$ git fetch origin e600412978950a25791435263b88b06f2fca2ca1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/simarrange
 * [new ref]         e600412978950a25791435263b88b06f2fca2ca1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e600412 Convert to %autorelease and %autochangelog