$ git clone -n https://src.fedoraproject.org/rpms/ibus-bamboo.git /var/lib/mock/f45-build-14024-456/root/chroot_tmpdir/scmroot/ibus-bamboo
Cloning into '/var/lib/mock/f45-build-14024-456/root/chroot_tmpdir/scmroot/ibus-bamboo'...
$ git fetch origin 103922a3ab4bf9151a92a4c3a35e2df67bfb9f46:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ibus-bamboo
 * [new ref]         103922a3ab4bf9151a92a4c3a35e2df67bfb9f46 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
Updating files:  44% (4/9)
Updating files:  55% (5/9)
Updating files:  66% (6/9)
Updating files:  77% (7/9)
Updating files:  88% (8/9)
Updating files: 100% (9/9)
Updating files: 100% (9/9), done.
HEAD is now at 103922a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild