$ git clone -n https://src.fedoraproject.org/rpms/rust-crypto-mac.git /var/lib/mock/f39-build-1488765-34499/root/chroot_tmpdir/scmroot/rust-crypto-mac
Cloning into '/var/lib/mock/f39-build-1488765-34499/root/chroot_tmpdir/scmroot/rust-crypto-mac'...
$ git fetch origin 2ed93ae0f6128c60ea72f90d83ab6cb43b3c1134:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-crypto-mac
 * [new ref]         2ed93ae0f6128c60ea72f90d83ab6cb43b3c1134 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ed93ae Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild