$ git clone -n https://src.fedoraproject.org/rpms/rust-kdotool.git /var/lib/mock/f45-build-42747-796/root/chroot_tmpdir/scmroot/rust-kdotool
Cloning into '/var/lib/mock/f45-build-42747-796/root/chroot_tmpdir/scmroot/rust-kdotool'...
$ git fetch origin 39bba17ace62756d21eaa8eed79e260037f7c78e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-kdotool
 * [new ref]         39bba17ace62756d21eaa8eed79e260037f7c78e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39bba17 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild