$ git clone -n https://src.fedoraproject.org/rpms/hid4java.git /var/lib/mock/f40-build-2599630-63054/root/chroot_tmpdir/scmroot/hid4java
Cloning into '/var/lib/mock/f40-build-2599630-63054/root/chroot_tmpdir/scmroot/hid4java'...
$ git fetch origin acef74302f05d7934e057ca2a0afcd3531fc406e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hid4java
 * [new ref]         acef74302f05d7934e057ca2a0afcd3531fc406e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at acef743 Merge branch 'rawhide' into f40