$ git clone -n https://src.fedoraproject.org/rpms/rust-email-encoding.git /var/lib/mock/f40-build-2658717-66918/root/chroot_tmpdir/scmroot/rust-email-encoding
Cloning into '/var/lib/mock/f40-build-2658717-66918/root/chroot_tmpdir/scmroot/rust-email-encoding'...
$ git fetch origin 20baf5130df3f31012a71201057a2c35b0f2ba17:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-email-encoding
 * [new ref]         20baf5130df3f31012a71201057a2c35b0f2ba17 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 20baf51 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild