$ git clone -n https://src.fedoraproject.org/rpms/idle3-tools.git /var/lib/mock/f45-build-14031-456/root/chroot_tmpdir/scmroot/idle3-tools
Cloning into '/var/lib/mock/f45-build-14031-456/root/chroot_tmpdir/scmroot/idle3-tools'...
$ git fetch origin c235692e70df4b2d7f8434edf3aab00263a7f05f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/idle3-tools
 * [new ref]         c235692e70df4b2d7f8434edf3aab00263a7f05f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c235692 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild