$ git clone -n https://src.fedoraproject.org/rpms/zanshin.git /var/lib/mock/f40-build-780910-131370/root/chroot_tmpdir/scmroot/zanshin
Cloning into '/var/lib/mock/f40-build-780910-131370/root/chroot_tmpdir/scmroot/zanshin'...
$ git fetch origin 2f7f2c750e0b509ef3bc4e982b0284865ace503f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/zanshin
 * [new ref]         2f7f2c750e0b509ef3bc4e982b0284865ace503f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2f7f2c7 24.01.95