$ git clone -n https://src.fedoraproject.org/rpms/yosys.git /var/lib/mock/f40-build-2191666-51450/root/chroot_tmpdir/scmroot/yosys
Cloning into '/var/lib/mock/f40-build-2191666-51450/root/chroot_tmpdir/scmroot/yosys'...
$ git fetch origin 91ba28f269b392ba8563a3facf702f412fbb8a2f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yosys
 * [new ref]         91ba28f269b392ba8563a3facf702f412fbb8a2f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
Updating files:  66% (4/6)
Updating files:  83% (5/6)
Updating files: 100% (6/6)
Updating files: 100% (6/6), done.
HEAD is now at 91ba28f update to 0.36 snapshot