$ git clone -n https://src.fedoraproject.org/rpms/rust-serde_with1.git /var/lib/mock/f40-build-2678422-67921/root/chroot_tmpdir/scmroot/rust-serde_with1
Cloning into '/var/lib/mock/f40-build-2678422-67921/root/chroot_tmpdir/scmroot/rust-serde_with1'...
$ git fetch origin 8444762bccc3607617d9404da4b087246bdea1c4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-serde_with1
 * [new ref]         8444762bccc3607617d9404da4b087246bdea1c4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8444762 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild