$ git clone -n https://src.fedoraproject.org/rpms/rust-effective-limits.git /var/lib/mock/f40-build-2568507-62223/root/chroot_tmpdir/scmroot/rust-effective-limits
Cloning into '/var/lib/mock/f40-build-2568507-62223/root/chroot_tmpdir/scmroot/rust-effective-limits'...
$ git fetch origin 49902ee1768f130711779402bac5ec8b2c73aa4d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-effective-limits
 * [new ref]         49902ee1768f130711779402bac5ec8b2c73aa4d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 49902ee Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild