$ git clone -n https://src.fedoraproject.org/rpms/rust-below-btrfs.git /var/lib/mock/f41-build-side-1-2934429-35233/root/chroot_tmpdir/scmroot/rust-below-btrfs
Cloning into '/var/lib/mock/f41-build-side-1-2934429-35233/root/chroot_tmpdir/scmroot/rust-below-btrfs'...
$ git fetch origin 90fd867aa280389090ab16da91cdf209ac599ed7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-below-btrfs
 * [new ref]         90fd867aa280389090ab16da91cdf209ac599ed7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90fd867 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild