$ git clone -n https://src.fedoraproject.org/rpms/yubikey-manager.git /var/lib/mock/f39-build-1696202-41171/root/chroot_tmpdir/scmroot/yubikey-manager
Cloning into '/var/lib/mock/f39-build-1696202-41171/root/chroot_tmpdir/scmroot/yubikey-manager'...
$ git fetch origin 0d6eabf304696d2beb54796be959a627ed474ec0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yubikey-manager
 * [new ref]         0d6eabf304696d2beb54796be959a627ed474ec0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d6eabf rhbz#2243121