$ git clone -n https://src.fedoraproject.org/rpms/rust-opener.git /var/lib/mock/f45-build-43552-803/root/chroot_tmpdir/scmroot/rust-opener
Cloning into '/var/lib/mock/f45-build-43552-803/root/chroot_tmpdir/scmroot/rust-opener'...
$ git fetch origin 2ce94325c731462029c575c76145f97c78b902b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-opener
 * [new ref]         2ce94325c731462029c575c76145f97c78b902b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ce9432 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild