$ git clone -n https://src.fedoraproject.org/rpms/rust-im-rc.git /var/lib/mock/f42-build-3231195-41191/root/chroot_tmpdir/scmroot/rust-im-rc
Cloning into '/var/lib/mock/f42-build-3231195-41191/root/chroot_tmpdir/scmroot/rust-im-rc'...
$ git fetch origin 985112c74170794d589edb684a1b37ca7005ba71:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-im-rc
 * [new ref]         985112c74170794d589edb684a1b37ca7005ba71 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 985112c Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild