$ git clone -n https://src.fedoraproject.org/rpms/rust-gio0.15.git /var/lib/mock/f39-build-1638151-40028/root/chroot_tmpdir/scmroot/rust-gio0.15
Cloning into '/var/lib/mock/f39-build-1638151-40028/root/chroot_tmpdir/scmroot/rust-gio0.15'...
$ git fetch origin 593907a8bde2b5577402ca720321acac1a7b7d4b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gio0.15
 * [new ref]         593907a8bde2b5577402ca720321acac1a7b7d4b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 593907a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild