$ git clone -n https://src.fedoraproject.org/rpms/rust-imagequant-sys.git /var/lib/mock/f45-build-42529-794/root/chroot_tmpdir/scmroot/rust-imagequant-sys
Cloning into '/var/lib/mock/f45-build-42529-794/root/chroot_tmpdir/scmroot/rust-imagequant-sys'...
$ git fetch origin 21d1effeace982a3a87fcb0b51d53dcad5c209a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-imagequant-sys
 * [new ref]         21d1effeace982a3a87fcb0b51d53dcad5c209a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21d1eff Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild